Authentication, Authorization and User Management

  • Aserto - Fine-grained authorization as a service for applications and APIs. Free up to 1000 MAUs and 100 authorizer instances.
  • asgardeo.io - Seamless Integration of SSO, MFA, passwordless auth and more. Includes SDKs for frontend and backend apps. Free up to 1000 MAUs and 5 identity providers.
  • Auth0 — Hosted SSO. Up to 7000 active users and 2 social identity providers.
  • Authgear - Bring Passwordless, OTPs, 2FA, SSO to your apps in minutes. All Front-end included. Free up to 5000 MAUs.
  • Authress — Authentication login and access control, unlimited identity providers for any project. Facebook, Google, Twitter and more. First 1000 API calls are free.
  • Authy - Two-factor authentication (2FA) on multiple devices, with backups. Drop-in replacement for Google Authenticator. Free for up to 100 successful authentications.
  • Clerk — User management, auth, 2FA/MFA with prebuilt UI components. Free up to 5,000 monthly active users.
  • Cloud-IAM — Keycloak Identity and Access Management as a Service. Free up to 100 users and 1 realm.
  • Descope — Highly customizable AuthN flows, has both a no-code and API/SDK approach, Free 7,500 active users/month, 50 tenants (up to 5 SAML/SSO tenants).
  • duo.com — Two-factor authentication (2FA) for website or app. Free for 10 users, all authentication methods, unlimited, integrations, hardware tokens.
  • Jumpcloud — Provides directory as a service similar to Azure AD, user management, single sign-on, and RADIUS authentication. Free for up to 10 users.
  • Kinde - Simple, powerful authentication you can integrate with your product in minutes. Everything you need to get started with 7,500 free MAU.
  • logintc.com — Two-factor authentication (2FA) by push notifications, free for 10 users, VPN, Websites and SSH
  • MojoAuth - MojoAuth makes it easy to implement Passwordless authentication on your web, mobile or any application in minutes.
  • Okta — User management, authentication and authorization. Free for up to 100 monthly active users.
  • onelogin.com — Identity as a Service (IDaaS), Single Sign-On Identity Provider, Cloud SSO IdP, 3 company apps and 5 personal apps, unlimited users
  • Ory - AuthN/AuthZ/OAuth2.0/Zero Trust managed security platform. Forever free developer accounts with all security features, unlimited team members, 200 daily active users, and 25k/mo permission checks.
  • Stytch - Flexible authentication APIs and SDKs with reach-resistant passwords, passwordless login flows, MFA, SSO, and more. Email/SMS sending + failover and fraud protections built-in. Offers 5,000 Monthly Active Users free (B2C) or 1,000 Monthly Active Users and 25 Organizations free (B2B).
  • SuperTokens - Open source user authentication that natively integrates into your app - enabling you to get started quickly while controlling the user and developer experience. Free for up to 5000 MAUs.
  • Warrant — Hosted enterprise-grade authorization and access control service for your apps. Free tier includes 1 million API requests per month and 1,000 authz rules.
  • ZITADEL Cloud — A turnkey user and access management that works for you and supports multi tenant (B2B) use cases. Free for up to 25'000 authenticated requests, with all security features (no paywall for OTP, Passwordless, Policies and so on).
  • PropelAuth — A Sell to companies of any size immediately with a few lines of code, free up to 200 users and 10k Transactional Emails (with a watermark branding: "Powered by PropelAuth").
  • Logto - Develop, secure, and manage user identities of your product - for both authentication and authorization. Free for up to 5,000 MAUs with open-source self-hosted option available.

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Mobile App Distribution and Feedback

  • TestApp.io - Your go-to platform for making sure your mobile apps work like they should. Free plan: one app, analytics, unlimited versions & installs, and feedback collection.
  • Diawi - Deploy iOS & Android apps directly to devices. Free plan: app uploads, password-protected links, 1-day expiration, 10 installations.
  • InstallOnAir - Distribute iOS & Android apps over the air. Free plan: unlimited uploads, private links, 2-day expiration for guests, 60 days for registered users.
  • GetUpdraft - Distribute mobile apps for testing. Free plan includes: 1 app project, 3 app versions, 500 MB storage, and 100 app installations per month.
  • Appho.st - Mobile app hosting platform. Free plan includes: 5 apps, 50 monthly downloads, and a maximum file size of 100MB.

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Management System

  • bitnami.com — Deploy prepared apps on IaaS. Management of 1 AWS micro instance free
  • Esper — MDM and MAM for Android Devices with DevOps. 100 devices free with 1 user license and 25 MB Application Storage.
  • jamf.com — Device management for iPads, iPhones and Macs, 3 devices free
  • Miradore — Device Management service. Stay up-to-date with your device fleet and secure an unlimited number of devices for free. Free plan offers basic features.
  • moss.sh - Help developers deploy and manage their web apps and servers. Free up to 25 git deployments per month
  • runcloud.io - Server management focusing mainly on PHP projects. Free for up to 1 server.
  • ploi.io - Server management tool to easily manage and deploy your servers & sites. Free for 1 server.

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Messaging and Streaming

  • Ably - Realtime messaging service with presence, persistence and guaranteed delivery. Free plan includes 3m messages per month, 100 peak connections and 100 peak channels.
  • cloudamqp.com — RabbitMQ as a Service. Little Lemur plan: max 1 million messages/month, max 20 concurrent connections, max 100 queues, max 10,000 queued messages, multiple nodes in different AZ's
  • connectycube.com - Unlimited chat messages, p2p voice & video calls, files attachments and push notifications. Free for apps up to 1000 users.
  • courier.com — Single API for push, in-app, email, chat, SMS, and other messaging channels with template management and other features. Free plan includes 10,000 messages/mo.
  • HiveMQ - Connect your MQTT devices to the Cloud Native IoT Messaging Broker. Free to connect up to 100 devices (no credit card required) forever.
  • knock.app – Notifications infrastructure for developers. Send to multiple channels like in-app, email, SMS, Slack, and push with a single API call. Free plan includes 10,000 messages/mo.
  • pusher.com — Realtime messaging service. Free for up to 100 simultaneous connections and 200,000 messages/day
  • scaledrone.com — Realtime messaging service. Free for up to 20 simultaneous connections and 100,000 events/day
  • synadia.com — NATS.io as a service. Global, AWS, GCP, and Azure. Free forever with 4k msg size, 50 active connections and 5GB of data per month.
  • cloudkarafka.com - Free Shared Kafka cluster, up to 5 topics, 10MB data per topic and 28 days of data retention.
  • pubnub.com - Swift, Kotlin and React messaging at 1 million transactions each month. Transactions may contain multiple messages.
  • eyeson API - A video communication API service based on WebRTC (SFU, MCU) to build video platforms. Allows RealTime Data Injection, Video Layouts, Recordings, a fully featured hosted web UI (quickstart) or packages for custom UIs. Has a free tier for developers with 1000 meeting minutes a month.
  • Upstash Kafka - Serverless Kafka Cloud offering with per-request-pricing. It has a free tier with max 10000 messages per day.
  • webpushr - Web Push Notifications - Free for upto 10k subscribers, unlimited push notifications, in-browser messaging
  • Scramjet Cloud Platform Beta - An end-to-end stream processing platform in free beta and offering 15 petabyte-seconds of free compute after the beta ends.
  • httpSMS - Send and receive text messages using your Android phone as an SMS Gateway. Free to send and receive up to 200 messages per month.

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Log Management

  • bugfender.com — Free up to 100k log lines/day with 24 hours retention
  • logentries.com — Free up to 5 GB/month with 7 days retention
  • loggly.com — Free for a single user, 200MB/day with 7 days retention
  • logz.io — Free up to 1 GB/day, 1 days retention
  • ManageEngine Log360 Cloud — Log Management service powered by Manage Engine. Free Plan offers 50 GB storage with 1 Month retention.
  • papertrailapp.com — 48 hours search, 7 days archive, 50 MB/month
  • sematext.com — Free up to 500 MB/day, 7 days retention
  • sumologic.com — Free up to 500 MB/day, 7 days retention
  • logflare.app — Free for upto 12,960,000 entries per app per month, 3 days retention
  • logtail.com — ClickHouse-based SQL-compatible log management. Free up to 1 GB per month, 3 days retention.
  • logzab.com — Audit trail management system. Free 1.000 user activity log per month, 1 month retention, for up-to 5 projects.

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Translation Management

  • crowdin.com — Unlimited projects, unlimited strings and collaborators for Open Source
  • gitlocalize.com - Free and unlimited for both private and public repositories
  • Lecto - Machine Translation API with Free tier (30 free requests, 1000 translated characters per request). Integrated with Loco Translate Wordpress plugin.
  • lingohub.com — Free up to 3 users, always free for Open Source
  • localazy.com - Free for 1000 source language strings, unlimited languages, unlimited contributors, startup and open source deals
  • Localeum - Free up to 1000 strings, 1 user, unlimited languages, unlimited projects
  • localizely.com — Free for Open Source
  • Loco — Free up to 2000 translations, Unlimited translators, 10 languages/project, 1000 translatable assets/project
  • oneskyapp.com — Limited free edition for up to 5 users, free for Open Source
  • POEditor — Free up to 1000 strings
  • SimpleLocalize - Free up to 100 translation keys, unlimited strings, unlimited languages, startup deals
  • Texterify - Free for a single user
  • Tolgee - Free SaaS offering with limited translations, forever-free self hosted version
  • transifex.com — Free for Open Source
  • Translation.io - Free for Open Source
  • Translized - Free up to 1000 strings, 1 user, unlimited languages, unlimited projects
  • webtranslateit.com — Free up to 500 strings
  • weblate.org — It's free for libre projects up to 10,000 string source for the free tier, and Unlimited Self-hosted on-premises.
  • Free PO editor — Free for everybody

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Monitoring

  • Pingmeter.com - 5 uptime monitors with 10 minutes interval. Monitor SSH, HTTP, HTTPS, and any custom TCP ports.
  • appdynamics.com — Free for 24 hours metrics, application performance management agents limited to one Java, one .NET, one PHP and one Node.js
  • appneta.com — Free with 1-hour data retention
  • appspector.com - Mission control, for remote iOS/Android/Flutter debugging. Free for small traffic usage (64MB of logs).
  • assertible.com — Automated API testing and monitoring. Free plans for teams and individuals.
  • checklyhq.com - Open source E2E / Synthetic monitoring and deep API monitoring for developers. Free plan with 5 users and 50k+ check runs.
  • circonus.com — Free for 20 metrics
  • cloudsploit.com — AWS security and configuration monitoring. Free: unlimited on-demand scans, unlimited users, unlimited stored accounts. Subscription: automated scanning, API access, etc.
  • cronitor.io - Performance insights and uptime monitoring for cron jobs, websites, APIs and more. Free tier with 5 monitors.
  • datadoghq.com — Free for up to 5 nodes
  • deadmanssnitch.com — Monitoring for cron jobs. 1 free snitch (monitor), more if you refer others to sign up
  • downtimemonkey.com — 60 uptime monitors, 5 minute interval. Email, Slack alerts.
  • economize.cloud — Economize helps demystify cloud infrastructure costs by organizing cloud resources, optimize and report the same. Free for up to $5000 spends on Google Cloud Platform every month.
  • elastic.co — Instant performance insights for JS developers. Free with 24 hours data retention
  • freeboard.io — Free for public projects. Dashboards for your Internet of Things (IoT) projects
  • Grafana Cloud - Grafana Cloud is a composable observability platform, integrating metrics and logs with Grafana. Free: 3 users, 10 dashboards, 100 alerts, metrics storage in Prometheus and Graphite (10,000 series, 14 days retention), logs storage in Loki (50 GB of logs, 14 days retention)
  • healthchecks.io — Monitor your cron jobs and background tasks. Free for up to 20 checks.
  • inspector.dev - A complete Real-Time monitoring dashboard in less than one minute with free forever tier.
  • instrumentalapp.com - Beautiful and easy-to-use application and server monitoring with up to 500 metrics and 3 hours of data visibility for free
  • keychest.net/speedtest - Independent speed test and TLS handshake latency test against Digital Ocean
  • letsmonitor.org - SSL monitoring, free for up to 5 monitors
  • loader.io — Free load testing tools with limitations
  • meercode.io — Meercode is the ultimate monitoring dashboard for your CI/CD builds. Free for open-source and 1 private repository.
  • netdata.cloud — Netdata is an open source tool designed to collect real-time metrics.Great fast growing product. It can also be found in github!
  • newrelic.com — New Relic observability platform built to help engineers create more perfect software. From monoliths to serverless, you can instrument everything, then analyze, troubleshoot, and optimize your entire software stack. Free tier offers 100GB/month of free data ingest, 1 free full access user, and unlimited free basic users.
  • Middleware.io - Middleware observability platform provides complete visibility into your apps & stack, so you can monitor & diagnose issues at scale. They have a free forever plan for Dev community use that allows Log monitoring for upto 1M log events, Infrastructure monitoring & APM for upto 2 hosts.
  • nixstats.com - Free for one server. E-Mail Notifications, public status page, 60 second interval and more.
  • OnlineOrNot.com - OnlineOrNot is a reliable uptime monitor for both JS-based web apps and websites. 5 uptime checks (for static websites and APIs) with a 5 minute interval, 1 browser check with a 15 minute interval. Also provides automated public status pages (with support coming for 3rd party uptime monitoring). Free for up to 3 users, alerts via Slack, Discord, and Email.
  • opsgenie.com — Powerful alerting and on-call management for operating always-on services. Free up to 5 users.
  • paessler.com — Powerful infrastructure and network monitoring solution including alerting, strong visualization capabilities and basic reporting. Free up to 100 sensors.
  • syagent.com — Non commercial free server monitoring service, alerts and metrics.
  • pagerly.io - Manage oncalls on Slack (integrates with Pagerduty, OpsGenie) .Free upto 1 team (one team refers to one oncall)
  • pagertree.com - Simple interface for alerting and on-call management. Free up to 5 users.
  • pingbreak.com — Modern uptime monitoring service. Check unlimited URLs and get downtime notifications via Discord, Slack or email.
  • pingpong.one — Advanced status page platform with monitoring. Free tier includes one public customizable status page with SSL subdomain. Pro plan is offered to open-source projects and non-profits free of charge.
  • robusta.dev — Powerful Kubernetes monitoring, based on Prometheus. Bring your own Prometheus or install the all-in-one bundle. Free tier includes up to 20 Kubernetes nodes. Alerts via Slack, Microsoft Teams, Discord, and more. Integrations with PagerDuty, OpsGenie, VictorOps, DataDog, and many other tools.
  • sematext.com — Free for 24 hours metrics, unlimited number of servers, 10 custom metrics, 500,000 custom metrics data points, unlimited dashboards, users, etc.
  • sitemonki.com — Website, domain, Cron & SSL monitoring, 5 monitors in each category for free
  • sitesure.net - Website and cron monitoring - 2 monitors free
  • skylight.io — Free for first 100,000 requests (Rails only)
  • speedchecker.xyz — Performance Monitoring API, checks Ping, DNS, etc.
  • stathat.com — Get started with 10 stats for free, no expiration
  • statuscake.com — Website monitoring, unlimited tests free with limitations
  • statusgator.com — Status page monitoring, 3 monitors free
  • thousandeyes.com — Network and user experience monitoring. 3 locations and 20 data feeds of major web services free
  • uptimerobot.com — Website monitoring, 50 monitors free
  • uptimetoolbox.com — Free monitoring for 5 websites, 60 second intervals, public statuspage.
  • zenduty.com — End-to-end incident management, alerting, on-call management and response orchestration platform for network operations, site reliability engineering and DevOps teams. Free for upto 5 users.
  • instatus.com - Get a beautiful status page in 10 seconds. Free forever with unlimited subs and unlimited teams.
  • Squadcast.com - Squadcast is an end-to-end incident management software that's designed to help you promote SRE best practices. Free forever plan available for upto 10 users.
  • RoboMiri.com - RoboMiri is a stable uptime monitor that offer a wide range of monitors: cronjob, keyword, website, port, ping. 25 uptime checks with a 3 minutes interval checks for free. Alerts via Phone Call, SMS, Email and Web Hook.
  • Better Stack - Uptime monitoring, incident management, on-call scheduling/alerting and status pages in a single product. 10 monitors with 3 min check frequency and status pages are included on the free plan.
  • Pulsetic - 10 monitors, 6 Months Historical Uptime/Logs, unlimited status pages and custom domains included! For unlimited time and unlimited email alerts for free. No credit card required.
  • Wachete - monitor 5 pages, checks every 24 hours.

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Crash and Exception Handling

  • CatchJS.com - JavaScript error tracking with screenshots and click trails. Free for open source projects.
  • bugsnag.com — Free for up to 2,000 errors/month after the initial trial
  • elmah.io — Error logging and uptime monitoring for web developers. Free Small Business subscription for open source projects.
  • Embrace — Mobile app monitoring. Free for small teams up to 1 million user sessions per year.
  • exceptionless — Real-time error, feature, log reporting and more. Free for 3k events per month/1 user. Open source and easy to self-host for unlimited use.
  • GlitchTip — Simple, open source error tracking. Compatible with open-source Sentry SDKs. 1000 events per month for free, or can self-host with no limits
  • honeybadger.io - Exception, uptime, and cron monitoring. Free for small teams and open-source projects (12,000 errors/month).
  • memfault.com — Cloud platform for device observability and debugging. 100 devices free for Nordic, NXP, and Laird devices.
  • rollbar.com — Exception and error monitoring, free plan with 5,000 errors/month, unlimited users, 30 days retention
  • sentry.io — Sentry tracks app exceptions in real-time, has a small free plan. Free for 5k errors per month/ 1 user, unrestricted use if self-hosted
  • Axiom — Store up to 0.5 TB of logs with 30 day retention. Includes integrations with platforms like Vercel and advanced data querying with email/Discord notifiers.
  • Semaphr — Free all-in-one kill switch for your mobile apps.

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Search

  • algolia.com — Hosted search-as-you-type (instant). Free hacker plan up to 10,000 documents and 100,000 operations. Bigger free plans available for community/Open Source projects
  • bonsai.io — Free 1 GB memory and 1 GB storage
  • CommandBar - Unified Search Bar as-a-service, web based UI widget/plugin that allows your users to search contents, navigations, features, etc. within your product, which helps discoverability. Free for up-to 1000 Monthly Active Users, unlimited commands.
  • Magny - SaaS service that helps implement command palettes (e.g in-app search), which significantly decreases the time users find anything in an app, leveraging the user experience and efficiency.
  • searchly.com — Free 2 indices and 20 MB storage
  • pagedart.com - AI search as a service the free tier includes 1000 Documents, 50000 searches. Larger free tiers are possible for worthwhile projects.
  • Meilisearch - An open-source, lightning-fast, and hyper-relevant search engine that fits effortlessly into your apps, websites, and workflow. Free plan includes 100K documents and 10K searches/month.

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Email

  • 10minutemail - Free, temporary email for testing.
  • AnonAddy - Open-source anonymous email forwarding, create unlimited email aliases for free
  • Antideo — 10 API requests per hour for email verification, IP and phone number validation in free tier. No Credit Cards required.
  • Bump - Free 10 Bump email addresses, 1 custom domain
  • Burnermail – Free 5 Burner Email Addresses, 1 Mailbox, 7 day Mailbox History
  • Buttondown — Newsletter service. Up to 100 subscribers free
  • CloudMailin - Incoming email via HTTP POST and transactional outbound - 10,000 free emails/month
  • cloudmersive.com — Email validation and verification API for developers, 800 free API requests/month
  • Contact.do — Contact form in a link (bitly for contact forms) - totally free!
  • debugmail.io — Easy to use testing mail server for developers
  • DNSExit - Up to 2 Email addresses under your domain for free with 100MB of storage space. IMAP, POP3, SMTP, SPF/DKIM support.
  • emaildrop.io — Free disposable email provider. Email addresses can be created via GraphQL API.
  • EmailLabs.io — Send up to 9,000 Emails for free every month, up to 300 emails per day.
  • EmailOctopus - Up to 2,500 subscribers and 10,000 emails per month free
  • EmailJS – This is not a full email server, this is just email client which you can use to send emails right from client send without exposing your credentials, the free tier has: 200 monthly requests, 2 email templates, Requests up to 50Kb, Limited contacts history.
  • EtherealMail - Ethereal is a fake SMTP service, mostly aimed at Nodemailer and EmailEngine users (but not limited to). It's a completely free anti-transactional email service where messages never get delivered.
  • Tempmailers - Generate unlimited temporary email addresses for free
  • Emailvalidation.io - 100 free email verifications per month
  • fakermail.com — Free, temporary email for testing with last 100 email accounts stored.
  • forwardemail.net — Free email forwarding for custom domains. Create and forward an unlimited amount of email addresses with your domain name (note: You must pay if you use .casa, .cf, .click, .email, .fit, .ga, .gdn, .gq, .lat, .loan, .london, .men, .ml, .pl, .rest, .ru, .tk, .top, .work TLDs due to spam)
  • HotTempMail - Unlimited free temp email or disposable temporary email addresses. Autoexpires in one day.
  • Imitate Email - Sandbox Email Server for testing email functionality across build/qa and ci/cd. Free accounts get 15 emails a day forever.
  • ImprovMX – Free email forwarding
  • EForw – Free email forwarding for 1 domain. Receive and send emails from your domain.
  • inboxkitten.com - Free temporary/disposable email inbox, with up-to 3 day email auto-deletes. Open sourced, and can be self-hosted.
  • mail-tester.com — Test if email's dns/spf/dkim/dmarc settings are correct, 20 free/month
  • dkimvalidator.com - Test if email's dns/spf/dkim/dmarc settings are correct, free service by roundsphere.com
  • mailcatcher.me — Catches mail and serves it through a web interface
  • Mailcheck.ai - Prevent users to sign up with temporary email addresses, 120 requests/hour (~86,400 per month)
  • Mailchimp — 500 subscribers and 1,000 emails/month free
  • MailerLite.com — 1,000 subscribers/month, 12,000 emails/month free
  • MailerSend.com — Email API, SMTP, 3,000 emails/month free for transactional emails
  • mailinator.com — Free, public, email system where you can use any inbox you want
  • Mailjet — 6,000 emails/month free (200 emails daily sending limit)
  • Mailnesia - Free temporary/disposable email, which auto visit registration link.
  • mailsac.com - Free API for temporary email testing, free public email hosting, outbound capture, email-to-slack/websocket/webhook (1,500 monthly API limit)
  • Mailtie.com - Free Email Forwarding for Your Domain. No registration required. Free Forever.
  • Mailtrap.io — Fake SMTP server for development, free plan with 1 inbox, 100 messages, no team member, 2 emails/second, no forward rules
  • Mailvalidator.io - Verify 300 emails/month for free, real-time API with bulk processing available
  • Mail7.io — Free Temp Email Addresses for QA Developers. Create email addresses instantly using Web Interface or API
  • Mutant Mail – Free 10 Email IDs, 1 Domain, 1 Mailbox. Single Mailbox for All Email IDs.
  • Outlook.com - Free personal email and calendar
  • Parsio.io — Free email parser (Forward email, extract the data, send it to your server)
  • pepipost.com — 30k emails free for first month, then first 100 emails/day free
  • Postmark - 100 emails/month free, unlimited DMARC weekly digests
  • Proton Mail - Free secure email account service provider with built-in end-to-end encryption. Free 1GB storage.
  • Queuemail.dev — Reliable email delivery API. Free tier (10,000 emails/per month). Send asynchronously. Use several SMTP servers. Blacklists, Loging, Tracking, Webhooks, and more...
  • QuickEmailVerification — Verify 100 emails daily for free on a free tier along with other free APIs like DEA Detector, DNS Lookup, SPF Detector and more.
  • Sender Up to 15 000 emails/month, up to 2,500 subscribers
  • SendGrid — 100 emails/day and 2,000 contacts free
  • Sendinblue — 9,000 emails/month, 300 emails/day free
  • Sendpulse — 500 subscribers/month, 12,000 emails/month free
  • SimpleLogin – Open source, self-hostable email alias/forwarding solution. Free 5 Aliases, unlimited bandwith, unlimited reply/send. Free for educational staffs (student, researcher, etc).
  • Skiff- Open source, end-to-end encrypted anonymous email service, no additional details asked at signup, free 10GB drive storage, 1 custom domain for your own website, free 4 aliases for your email address per account. Additional Crypto Wallet support for E2EE environment.
  • Substack — Unlimited free newsletter service. Start paying when you charge for it.
  • Tempmailo - Unlimited free temp email addresses. Autoexpire in two days.
  • Takeout - A constantly updated email service that makes sending emails extremely easy. 500 transactional emails/month free.
  • temp-mail.io — Free disposable temporary email service with multiple emails at once and forwarding
  • tinyletter.com — 5,000 subscribers/month free
  • trashmail.com - Free disposable email addresses with forwarding and automatic address expiration
  • Tutanota - Free secure email account service provider with built-in end-to-end encryption, no ads, no tracking. Free 1GB storage. Which also partially open source, so you can opt to self-host.
  • Validator.Pizza — Free API to detect disposable emails
  • Verifalia — Real-time email verification API with mailbox confirmation and disposable email address detector; 25 free email verifications/day.
  • verimail.io — Bulk and API email verification service. 100 free verifications/month

  • Zoho — Started as an e-mail provider but now provides a suite of services out of which some of them have free plans. List of services having free plans :

    • Email Free for 5 users. 5GB/user & 25 MB attachment limit, 1 domain.
    • Sprints Free for 5 users,5 Projects & 500MB storage.
    • Docs — Free for 5 users with 1 GB upload limit & 5GB storage. Zoho Office Suite (Writer,Sheets & Show) comes bundled with it.
    • Projects — Free for 3 users, 2 projects & 10 MB attachment limit. Same plan applies to Bugtracker.
    • Connect — Team Collaboration free for 25 users with 3 groups, 3 custom apps, 3 Boards, 3 Manuals, 10 Integrations along with channels,events & forums.
    • Meeting — Meetings with upto 3 meeting participants & 10 Webinar attendees.
    • Vault — Password Management free for Individuals.
    • Showtime — Yet another Meeting software for training for a remote session upto 5 attendees.
    • Notebook — A free alternative to Evernote.
    • Wiki — Free for 3 users with 50 MB storage, unlimited pages, zip backups, RSS & Atom feed, access controls & customisable CSS.
    • Subscriptions — Recurring Billing management free for 20 customers/subscriptions & 1 user with all the payment hosting done by Zoho themselves. Last 40 subscription metrics are stored
    • Checkout — Product Billing management with 3 pages & up to 50 payments.
    • Desk — Customer Support management with 3 agents and private knowledge base, email tickets. Integrates with Assist for 1 remote technician & 5 unattended computers.
    • Cliq — Team chat software with 100 GB storage, unlimited users, 100 users per channel & SSO.
    • Campaigns
    • Forms
    • Sign
    • Surveys
    • Bookings
    • Analytics
  • Resend - Transactional emails API for developers. 3,000 emails/month, 100 emails/day free, 1 custom domain.

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Feature Toggles Management Platforms

  • ConfigCat - ConfigCat is a developer-centric feature flag service with unlimited team size, awesome support, and a reasonable price tag. Free plan up to 10 flags, 2 environments, 1 product and 5 Million requests per month.
  • Flagsmith - Release features with confidence; manage feature flags across web, mobile, and server side applications. Use our hosted API, deploy to your own private cloud, or run on-premise.
  • GrowthBook - Open source feature flag and A/B testing provider with built-in Bayesian statistical analysis engine. Free for up to 3 users, unlimited feature flags and experiments.
  • Molasses - Powerful feature flags and A/B testing. Free up to 3 environments with 5 feature flags each.
  • Toggled.dev - Enterprise ready, scalable and multi-regional feature toggles management platform. Free plan up to 10 flags, 2 environments, unlimited requests. SDK, analytics dashboard, release calendar, Slack notifications and all other features are included in the endless free plan.

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Font

  • dafont - The fonts presented on this website are their authors' property, and are either freeware, shareware, demo versions or public domain.
  • Everything Fonts - Offers multiple tools; @font-face, Units Converter, Font Hinter and Font Submitter.
  • Font Squirrel - Freeware fonts that is licensed for commercial work. Hand-selected these typefaces and presenting them in an easy-to-use format.
  • Google Fonts - Lots of free fonts that are easy and quick to install in a website via a download or a link to Google's CDN.
  • FontGet - Has a variety of fonts available to download and sorted neatly with tags.
  • Fontshare - is a free fonts service. It’s a growing collection of professional grade fonts that are 100% free for personal and commercial use.
  • Befonts - Provides several unique fonts for personal or commercial use.
  • Font of web - Identify all the fonts used on a website and how they are used.

  • Bunny

    • Bunny Fonts - All the Google Fonts with Google Fonts drop-in compatible API. Privacy oriented!.
    • Bunny DNS - DNS hosting, 20 million free queries
  • FontsKey - Provides free fonts for personal use and commercial paid fonts, and can enter text for quick filtering.

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Forms

  • Feathery - Powerful, developer-friendly form builder. Build signup & login, user onboarding, payment flows, complex financial applications, and more. Free plan allows up to 250 submissions / month and 5 active forms.
  • Form-Data - No-code forms backend. Spam filter, email notification and auto-respond, webhooks, zapier, redirects, AJAX or POST and more. Free plan offers unlimited forms, 20 submissions/month and additional 2000 submissions with Form-Data badge.
  • FabForm - Form backend platform for smart developers. Free plan allows 250 form submissions per month. Friendly modern GUI. Integrates with Google Sheets, Airtable, Slack, Email and others.
  • Form.taxi — Endpoint for HTML forms submissions. With notifications, spam blocker and GDPR-compliant data processing. Free plan for basic usage.
  • Formcake.com - Form backend for devs, free plan allows unlimited forms, 100 submissions, Zapier integration. No libraries or dependencies required.
  • Formcarry.com - HTTP POST Form endpoint, Free plan allows 100 submissions per month.
  • formingo.co- Easy HTML forms for static websites, get started for free without registering an account. Free plan allows 500 submissions per month, customizable reply-to email address.
  • FormKeep.com - Unlimited forms with 50 submissions per month, spam protection, email notification and a drag and drop designer that can export HTML. Additional features include custom field rules, teams and integrations to Google Sheets, Slack, ActiveCampaign and Zapier.
  • formlets.com — Online forms, unlimited single page forms/month, 100 submissions/month, email notifications.
  • formspark.io - Form to Email service, free plan allows unlimited forms, 250 submissions per month, support by Customer assistance team.
  • Formspree.io — Send email using an HTTP POST request. Free tier limits to 50 submissions per form per month.
  • Formsubmit.co — Easy form endpoints for your HTML forms. Free Forever. No registration required.
  • getform.io - Form backend platform for designers and developers, 1 form, 50 submissions, Single file upload, 100MB file storage.
  • HeroTofu.com - Forms backend with bot detection and encrypted archive. Forward submissions via UI to email, Slack, or Zapier. Use your own frontend, no server code required. Free plan gives unlimited forms and 100 submissions per month.
  • HeyForm.net - Drag and drop online form builder. Free tier lets you create unlimited forms and collect unlimited submissions. Comes with pre-built templates, anti-spam, and 100MB file storage.
  • Tally.so - 99% of all the features are totally free. Free tier lets you have these: unlimited forms, unlimited submissions, email notifications, form logic, collect payments, file upload, custom thank you page, and many more.
  • Hyperforms.app — Create form to email and more in seconds and without backend code. The Personal account gives you up to 50 form submissions per month for free.
  • Kwes.io - Feature rich form endpoint. Works great with static sites. Free plan includes up 1 website with up to 50 submissions per month.
  • Pageclip - Free plan allows one site, one form, 1,000 submissions per month.
  • Qualtrics Survey — Create professional forms & survey using this first class tool. 50+ expert-designed survey templates. Free Account has limit of 1 active survey, 100 responses/survey & 8 response types.
  • Screeb - In-app surveys and product analytics for decoding user behavior. Forever free plan allows 500 monthly active users, unlimited responses and events, many integrations, export, and periodic reports.
  • smartforms.dev - Powerful and easy form backend for your website, forever free plan allows 50 submissions per month, 250MB file storage, Zapier integration, CSV/JSON export, custom redirect, custom response page, Telegram & Slack bot, single email notifications.
  • staticforms.xyz - Integrate HTML forms easily without any server side code for free. After user submits the form an email will be sent to your registered address with form content.
  • stepFORM.io - Quiz and Form Builder. Free plan has 5 forms, up to 3 steps per form, 50 responses per month.
  • Typeform.com — Include beautifully designed forms on websites. Free plan allows only 10 fields per form and 100 responses per month.
  • WaiverStevie.com - Electronic Signature platform with a REST API. Receive notifications with webhooks. Free plan watermarks signed documents, but allows unlimited envelopes + signatures.
  • Web3Forms - Contact forms for Static & JAMStack Websites without writing backend code. Free plan allows Unlimited Forms, Unlimited Domains & 250 Submissions per month.
  • WebAsk - Survey and Form Builder. Free plan has 3 surveys per account, 100 responses per month, 10 elements per survey.
  • Wufoo - Quick forms to use on websites. Free plan has a limit of 100 submissions each month.
  • formpost.app - Free, unlimited Form to Email service. Setup custom redirect, auto response, webhooks etc for free.
  • Formester.com - Share and embed unique-looking forms on your website—no limits on the number of forms created or features restricted by the plan. Get up to 100 submissions every month for free.
  • SimplePDF.eu - Embed a PDF editor on your website and turn any PDF into a fillable form. Free plan allows unlimited PDFs with 3 submissions per PDF.
  • forms.app — Create online forms with powerful features like conditional logic, automatic score calculator, and AI. Collect up to 100 responses with a free plan, embed your forms on a website, or use them with a link.

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CDN and Protection

  • bootstrapcdn.com — CDN for bootstrap, bootswatch and fontawesome.io
  • cdnjs.com — Simple. Fast. Reliable. Content delivery at its finest. cdnjs is a free and open-source CDN service trusted by over 11% of all websites, powered by Cloudflare.
  • developers.google.com — The Google Hosted Libraries is a content distribution network for the most popular, Open Source JavaScript libraries
  • Stellate - Stellate is blazing fast, reliable CDN for your GraphQL API and Free for 2 services.
  • jsdelivr.com — A free, fast, and reliable CDN for open source. Supports npm, GitHub, WordPress, Deno, and more.
  • Microsoft Ajax — The Microsoft Ajax CDN hosts popular third-party JavaScript libraries such as jQuery and enables you to easily add them to your Web application
  • ovh.ie — Free DDoS protection and SSL certificate
  • PageCDN.com - Offers free Public CDN for everyone, and free Private CDN for opensource / nonprofits.
  • Skypack — The 100% Native ES Module JavaScript CDN. Free for 1 million requests per domain, per month.
  • raw.githack.com — A modern replacement of rawgit.com which simply hosts file using Cloudflare
  • section.io — A simple way to spin up and manage a complete Varnish Cache solution. Supposedly free forever for one site
  • statically.io — CDN for Git repos (GitHub, GitLab, Bitbucket), WordPress-related assets and images
  • toranproxy.com — Proxy for Packagist and GitHub. Never fail CD. Free for personal use, 1 developer, no support
  • UNPKG — CDN for everything on npm
  • weserv — An image cache & resize service. Manipulate images on-the-fly with a worldwide cache.
  • Namecheap Supersonic — Free DDoS protection

  • Gcore

    • CDN — Global content delivery network, 1 TB and 1 million requests per month free.
    • DNS Hosting — Free DNS hosting.
  • LightCDN - Free 100GB CDN with 8 international Pop. Unlimited HTTP(S) requests.

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PaaS

  • anvil.works - Web app development with nothing but Python. Free tier with unlimited apps, 30 second timeouts.
  • configure.it — Mobile app development platform, free for 2 projects, limited features but no resource limits
  • codenameone.com — Open source, cross platform, mobile app development toolchain for Java/Kotlin developers. Free for commercial use with unlimited number of projects
  • Cosmonic - Feature rich WebAssembly PaaS and SDKs for low boilerplate, flexible, and secure by default microservices. Always free tier includes a managed host, 25 microservices, and included capabilities like a robust keyvalue store, load balanced public HTTP endpoints, and more.
  • Cyclic - Fullstack app hosting - Push to Github for build and deploy of Javascript/Node.js apps. Includes: Authentication, Cron jobs, Custom Domains, Database, Storage and Streaming logs. Paid plans include: branch based environments, multi-regional deployments and increased limits.
  • Deno Deploy - Distributed system that runs JavaScript, TypeScript, and WebAssembly at the edge, worldwide. Free tier includes 100,000 requests per day and 100 GiB data transfer per month.
  • domcloud.co – Linux hosting service that also provides CI/CD with GitHub, SSH and MariaDB/Postgres database. Free version has 1 GB storage and 1 GB network/month limit and limited to a free domain.
  • encore.dev — Backend framework using static analysis to provide automatic infrastructure, boilerplate free code, and more. Includes free cloud hosting for hobby projects.
  • gigalixir.com - Gigalixir provide 1 free instance that never sleeps, and free-tier PostgreSQL database limited to 2 connections, 10, 000 rows and no backups, for Elixir/Phoenix apps.
  • Glitch — Free public hosting with features such as code sharing and real-time collaboration. Free plan has 1000 hours/month limit.
  • Mendix — Rapid Application Development for Enterprises, unlimited number of free sandbox environments supporting unlimited users, 0.5 GB storage and 1 GB RAM per app. Also Studio and Studio Pro IDEs are allowed in free tier.
  • m3o.com - A cloud platform for API services development. M3O is a fully managed Micro as a Service offering focusing on Go microservices development in the Cloud. Free tier provides enough to run 5 services and collaborate with others.
  • pipedream.com - An integration platform built for developers. Develop any workflow, based on any trigger. Workflows are code, which you can run for free. No server or cloud resources to manage.
  • pythonanywhere.com — Cloud Python app hosting. Beginner account is free, 1 Python web application at your-username.pythonanywhere.com domain, 512 MB private file storage, one MySQL database
  • Serverless Cloud - Serverless Cloud lets you build Serverless APIs, DBs and Storage by using infrastrucure from code approach(no yaml, no infrastructure configuration). The product is provided by Serverless Inc. and currently under public preview.
  • fly.io - Fly is a platform for applications that need to run globally. It runs your code close to users and scales compute in cities where your app is busiest. Write your code, package it into a Docker image, deploy it to Fly's platform and let that do all the work to keep your app snappy. Free allowances include up to 3 shared-cpu-1x 256mb VMs, 3GB persistent volume storage (total) and 160GB outbound data transfer.
  • Divio - A platform to manage cloud application deploying only using Docker. Available free subscription for development projects. Requires card and no custom domain support.
  • Koyeb - Koyeb is a developer-friendly serverless platform to deploy apps globally. Seamlessly run Docker containers, web apps, and APIs with git-based deployment, native autoscaling, a global edge network, and built-in service mesh and discovery. Koyeb provides two nano services to run your apps with its forever-free tier and also sponsors open-source projects with free resources. The free plan requires card information.
  • Napkin - FaaS with 500Mb of memory, a default timeout of 15 seconds and 5,000 free API calls/month, rate-limited to 5 calls/second.
  • Meteor Cloud — Galaxy hosting. Meteor's own platform-as-a-service for Meteor apps which includes a free MongoDB Shared Hosting and automatic SSL.
  • Northflank — Build and deploy microservices, jobs and managed databases with a powerful UI, API & CLI. Seamlessly scale containers from version control and external Docker registries. Free tier includes 2 services, 2 cron jobs and 1 database.
  • YepCode - All-in-one platform to connect APIs and services in a serverless environment. It brings all the agility and benefits of NoCode tools, but with all the power of use programming languages. Free tier includes 1.000 yeps.
  • WunderGraph - An open source platform that allows you to quickly build, ship and manage modern APIs. Builtin CI/CD, GitHub integration, automatic HTTPS. Up to 3 projects, 1GB egress, 300 minutes of build time per month on the free plan
  • Doprax Cloud — Cloud hosting for your Apps, Websites and APIs. Free for one app, with 4 * 256MB ram and 2 GB of disk. To create an app space, you need to have at least $3 in your account credit balance.
  • Zeabur - Deploy your services with one click. Free for 3 services, with US$ 5 free credits per month.

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BaaS

  • Activepieces - Build automation flows to connect several apps together in the backend of your app. For example, when an event fires in your app, send a Slack message or add a Google Sheet row. Free up to 5,000 tasks per month.
  • back4app.com - Back4App is an easy-to-use, flexible and scalable backend based on Parse Platform.
  • backendless.com — Mobile and Web Baas, with 1 GB file storage free, push notifications 50000/month, and 1000 data objects in table.
  • BMC Developer Program — The BMC Developer Program provides documentation and resources to build and deploy digital innovations for your enterprise. Access to a comprehensive, personal sandbox which includes the platform, SDK, and a library of components that can be used to build and tailor apps.
  • convex.dev - Reactive backend as a service, hosting your data (documents with relationships & serializable ACID transactions), serverless functions, and websockets to stream updates to various clients. Free for small projects - up to 1M records, 5M function calls per month.
  • darklang.com - Hosted language combined with editor and infrastructure. Free during the beta, generous free tier planned after beta.
  • Firebase — Firebase helps you build and run successful apps. Free Spark Plan offers Authentication, Hosting, Firebase ML , Realtime Database,Cloud Storage,Testlab. A/B Testing, Analytics, App Distribution, App Indexing, Cloud Messaging (FCM), Crashlytics, Dynamic Links, In-App Messaging, Performance Monitoring, Predictions, and Remote Config are always-free.
  • Flutter Flow — Build your Flutter App UI without writing a single line of code. Also has a Firebase integration. Free plan includes full access to UI Builder and Free templates.
  • getstream.io — Build scalable In-App Chat, Messaging, Video & Audio, and Feeds in a few hours instead of weeks
  • hasura.io — Hasura extends your existing databases wherever it is hosted and provides an instant GraphQL API that can be securely accessed for web, mobile, and data integration workloads. Free for 1GB/month of data pass-through.
  • iron.io — Async task processing (like AWS Lambda) with free tier and 1-month free trial
  • nhost.io - Serverless backend for web and mobile apps. Free plan includes: PostgreSQL, GraphQL (Hasura), Authentication, Storage, and Serverless Functions.
  • nudge-hook.net — Job Scheduling API (with swagger/openapi client). Allows you to schedule as many adhoc/cron/periodic webhook deliveries as you like. Free for everyone (no signup required), but infinite schedules are limited to 500 'nudges' max. Accepts donations.
  • onesignal.com — Unlimited free push notifications
  • paraio.com — Backend service API with flexible authentication, full-text search and caching. Free for 1 app, 1GB app data.
  • progress.com — Mobile backend, starter plan has unlimited requests/second, with 1 GB of data storage. Enterprise application support
  • pubnub.com — Free push notifications for up to 1 million messages/month and 100 active daily devices
  • pushbots.com — Push notification service. Free for up to 1.5 million pushes/month
  • pushcrew.com — Push notification service. Unlimited notifications up to 2000 Subscribers

  • pusher.com — Free, unlimited push notifications for 2000 monthly active users. A single API for iOS and Android devices.

    • engagespot.co — Notification infrastructure for developers. Free for upto 100 monthly active users.
  • quickblox.com — A communication backend for instant messaging, video and voice calling and push notifications
  • restspace.io - Configure a server with services for auth, data, files, email API, templates etc, then compose into pipelines and transform data.
  • Salesforce Developer Program — Build apps Lightning fast with drag and drop tools. Customize your data model with clicks. Go further with Apex code. Integrate with anything using powerful APIs. Stay protected with enterprise-grade security. Customize UI with clicks or any leading-edge web framework. Free Developer Program gives access to the full Lightining Platform.
  • ServiceNow Developer Program — Rapidly build, test, and deploy applications that make work better for your organization. Free Instance & access early previews.
  • simperium.com — Move data everywhere instantly and automatically, multi-platform, unlimited sending and storage of structured data, max. 2,500 users/month
  • stackstorm.com — Event-driven automation for apps, services and workflows, free without flow, access control, LDAP,...
  • streamdata.io — Turns any REST API into an event-driven streaming API. Free plan up to 1 million messages and 10 concurrent connections.
  • Supabase — The Open Source Firebase Alternative to build backends. Free Plan offers Authentication, Realtime Database & Object Storage.
  • tyk.io — API management with authentication, quotas, monitoring and analytics. Free cloud offering
  • zapier.com — Connect the apps you use, to automate tasks. 5 zaps, every 15 minutes and 100 tasks/month
  • IFTTT — Automate your favorite apps and devices. Free 2 Applets
  • Integrately — Automate your tedious tasks with a single click. Free 100 Tasks, 15 Minute

Update Time, 5 active automations, webhooks.

  • LeanCloud — Mobile backend. 1GB of data storage, 256MB instance, 3K API requests/day, 10K pushes/day are free. (API is very similar to Parse Platform)

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Low-code Platform

  • BudiBase — Budibase is an open-source low-code platform for creating internal apps in minutes. Supports PostgreSQL, MySQL, MSSQL, MongoDB, Rest API, Docker, K8s
  • appsmith — Low code project to build admin panels, internal tools, and dashboards. Integrates with 15+ databases and any API.
  • ToolJet — Extensible low-code framework for building business applications. Connect to databases, cloud storages, GraphQL, API endpoints, Airtable, etc and build apps using drag and drop application builder.
  • ReTool — Low-code platform for building internal applications. Retool is highly hackable. If you can write it with JavaScript and an API, you can build it in Retool. The free tier allows up to five users per month, unlimited apps and API connections.
  • DronaHQ — DronaHQ - a low code platform helps engineering teams and product managers to build internal tools, custom user journeys, digital experiences, automations, custom admin panels, operational apps 10X faster.
  • ILLA Cloud — ILLA Cloud - A robust open source low-code platform for developers to build internal tools. By using ILLA's library of Components and Actions, developers can save massive amounts of time on building tools. Free for 5 team members.
  • outsystems.com — Enterprise web development PaaS for on-premise or cloud, free "personal environment" offering allows for unlimited code and up to 1 GB database

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Web Hosting

  • Alwaysdata — 100 MB free web hosting with support for MySQL, PostgreSQL, CouchDB, MongoDB, PHP, Python, Ruby, Node.js, Elixir, Java, Deno, custom web servers, access via FTP, WebDAV and SSH; mailbox, mailing list and app installer included.
  • Awardspace.com — Free web hosting + a free short domain, PHP, MySQL, App Installer, Email Sending & No Ads.
  • Bubble — Visual programming to build web and mobile apps without code, free with Bubble branding.
  • dAppling Network - Decentralized web hosting platform for Web3 frontends focusing on increasing uptime, security, and providing an additional access point for users.
  • DigitalOcean - Build and deploy 3 static sites for free on the App Platform Starter tier.
  • Drive To Web — Host directly to the web from Google Drive & OneDrive. Static sites only. Free forever. One site per Google/Microsoft account.
  • DuckDocs - Markdown-powered documentation hosting, sort of like a hosted Docusaurus. Free for 10 pages per site.
  • Fenix Web Server - A developer desktop app for hosting sites locally and sharing them publically (in realtime). Work however you like, using its beautiful user interface, API, and/or CLI.
  • Free Hosting — Free Hosting With PHP 5, Perl, CGI, MySQL, FTP, File Manager, POP E-Mail, free sub-domains, free domain hosting, DNS Zone Editor, Web Site Statistics, FREE Online Support and many more features not offered by other free hosts.
  • Freehostia — FreeHostia offers free hosting services incl. an industry-best Control Panel & a 1-click installation of 50+ free apps. Instant setup. No forced ads.
  • HelioHost — Non-profit free web hosting with Plesk control panel, PHP, Node.js, Python, Django, Flask, .NET, Perl, CGI, MySQL, PostgreSQL, SQLite, IMAP/POP3/SMTP email, unlimited bandwidth, free subdomains, 1000 MB storage for free with the option to upgrade.
  • Lecturify - Web hosting with sftp access for file upload and download, php available.
  • Neocities — Static, 1 GB free storage with 200 GB Bandwidth.
  • Netlify — Builds, deploy and hosts static site/app free for, 100 GB data and 100 GB/month bandwidth.
  • pantheon.io — Drupal and WordPress hosting, automated DevOps and scalable infrastructure. Free for developers and agencies. No custom domain.
  • readthedocs.org — Free documentation hosting with versioning, PDF generation and more
  • render.com — Unified cloud to build and run apps and sites with free SSL, a global CDN, private networks, auto-deploys from Git, and completely free plans for web services, databases, and static web pages.
  • SourceForge — Find, Create and Publish Open Source software for free
  • Stormkit — Integrate building, deploying and hosting seamlessly with your git flow of your JAMStack or Node.JS app. 50 GB bandwith and 10m requests for free per month including free SSL.
  • surge.sh — Static web publishing for Front-End developers. Unlimited sites with custom domain support
  • telegra.ph Easily create web page using Quill
  • tilda.cc — One site, 50 pages, 50 MB storage, only the main pre-defined blocks among 170+ available, no fonts, no favicon and no custom domain
  • Vercel — Build, deploy, and host web apps with free SSL, global CDN, and unique Preview URLs each time you git push. Perfect for Next.js and other Static Site Generators.
  • Versoly — SaaS focussed website builder - unlimited websites, 70+ blocks, 5 templates, custom CSS, favicon, SEO and forms. No custom domain.
  • Qoddi - PaaS service similar to Heroku with a developer-centric approach and all inclusive features. Free tier for static assets, staging and developer apps.
  • FreeFlarum - Community powered free Flarum hosting for up to 250 users (donate to remove watermark from footer).
  • fleek.co - Build modern sites and apps on the Open Web and its protocols seamlessly free for, unlimited websites and 50 GB/month bandwidth.
  • MDB GO - Free hosting for 1 project with 2 weeks Container TTL, 500mb RAM per project, SFTP - 1G disk space.
  • Patr Cloud — An easy-to-use cloud platform, among its paid services it offers hosting 3 static sites for free.
  • Serv00.com — 3 GB of free web hosting with daily backups (7 days). Support: Crontab jobs, SSH access, repositories (GIT, SVN, and Mercurial), support: MySQL, PostgreSQL, MongoDB, PHP, Node.js, Python, Ruby, Java, Perl, TCL/TK, Lua, Erlang, Rust, Pascal, C, C++, D, R, and many more.

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DNS

  • 1.1.1.1 - Free public DNS Resolver which is fast and secure (encrypt your DNS query), provided by CloudFlare. Useful to bypass your internet provider's DNS blocking, prevent DNS query spying, and to block adult & malware content. Can also be used via API. Note: Just a DNS resolver, not a DNS hoster.
  • 1984.is — Free DNS service with API, and lots of other free DNS features included.
  • cloudns.net — Free DNS hosting up to 1 domain with 50 records
  • deSEC - Free DNS hosting with API support, designed with security in mind. Runs on open-source software and is supported by SSE.
  • dns.he.net — Free DNS hosting service with Dynamic DNS Support
  • Zonomi — Free DNS hosting service with instant DNS propagation. Free plan: 1 DNS zone (domain name) with up to 10 DNS records.
  • dnspod.com — Free DNS hosting.
  • duckdns.org — Free DDNS with up to 5 domains on the free tier. With configuration guides for various setups.
  • freedns.afraid.org — Free DNS hosting. Also provide free subdomain based on numerous public user contributed domains. Get free subdomains from "Subdomains" menu after signing up.
  • luadns.com — Free DNS hosting, 3 domains, all features with reasonable limits
  • namecheap.com — Free DNS. No limit on number of domains
  • nextdns.io - DNS based firewall, 300K free queries monthly
  • noip — a dynamic dns service that allows up to 3 hostnames free with confirmation every 30 days
  • sslip.io — Free DNS service that when queried with a hostname with an embedded IP address returns that IP address.
  • zilore.com — Free DNS hosting, free for 5 domains.
  • zoneedit.com — Free DNS hosting with Dynamic DNS Support.
  • zonewatcher.com — Automatic backups and DNS change monitoring. 1 domain free
  • huaweicloud.com – Free DNS hosting by Huawei
  • Hetzner – Free DNS hosting from Hetzner with API support.
  • Glauca – Free DNS hosting for up to 3 domains and DNSSEC support

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Domain

  • eu.org — Free eu.org domain. Request is usually approved in 14 days.
  • pp.ua — Free pp.ua subdomains.

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IaaS

  • backblaze.com — Backblaze B2 cloud storage. Free 10 GB (Amazon S3-like) object storage for unlimited time
  • filebase.com - S3 Compatible Object Storage Powered by Blockchain. 5 GB free storage for unlimited duration.
  • scaleway — S3-Compatible Object Storage. Free 75 GB storage and external outgoing traffic(credit card required).
  • Storj — Decentralised Private Cloud Storage for Apps and Developers. Free plan provides 1 Project, 25 GB storage, 25 GB bandwidth per month.
  • Tebi - S3 compatibility object storage.Free 25 GB storage and 250GB outbound transfer.
  • Idrive e2 - S3 compatibility object storage. 10 GB free storage and 10 GB download bandwidth per month.
  • C2 Object Storage - S3 compatibility object storage. 15 GB free storage and 15 GB download per month.
  • Spheron — From Decentralised Cloud Storage, Web Hosting to Decentralised Compute for Apps & Developers under one platform, the Free plan provides 5GB Storage, 100GB Bandwidth, Unlimited Domain & Projects, $5 worth of Compute resources (Worth $50 w.r.t AWS).

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Managed Data Services

  • Aiven - Aiven offers free PostgreSQL, MySQL and Redis plans on its open source data platform. Single node, 1 CPU, 1GB RAM and for PostgreSQL and MySQL, 5GB storage. Easy migration to larger plans or across clouds.
  • airtable.com — Looks like a spreadsheet, but it's a relational database, unlimited bases, 1,200 rows/base and 1,000 API requests/month
  • Astra — Cloud Native Cassandra as a Service with 80GB free tier
  • codehooks.io — JavaScript serverless API/backend and database service with functions, Mongdb-ish queries, key/value lookups, a job system and a message queue. 1 instance free per project, 5000 records and 5000 calls/month free, 3 developers included. No credit-card required.
  • CrateDB - Distributed Open Source SQL database for real-time analytics. Free Tier CRFREE: One-node with 2 CPUs, 2 GiB of memory, 8 GiB of storage. 1 cluster per organization, no payment method needed.
  • elephantsql.com — PostgreSQL as a service, 20 MB free
  • FaunaDB — Serverless cloud database, with native GraphQL, multi-model access and daily free tiers up to 100 MB
  • HarperDb — Serverless cloud database, with dynamic schema based on JSON, 3000 IOPS with 1GB storage
  • Upstash — Serverless Redis with free tier up to 10,000 requests per day, 256MB max database size, and 20 concurrent connections
  • MongoDB Atlas — free tier gives 512 MB
  • redsmin.com — Online real-time monitoring and administration service for Redis, Monitoring for 1 Redis instance free
  • redislabs - Free 30MB redis instance
  • MemCachier — Managed Memcache service. Free for up to 25MB, 1 Proxy Server and basic analytics
  • scalingo.com — Primarily a PaaS but offers a 128MB to 192MB free tier of MySQL, PostgreSQL or MongoDB
  • SeaTable — Flexible, Spreadsheet-like Database built by Seafile team. unlimited tables, 2,000 lines, 1-month versioning, up to 25 team members.
  • skyvia.com — Cloud Data Platform, offers free tier and all plans are completely free while in beta
  • StackBy — One tool that brings together flexibility of spreadsheets, power of databases and built-in integrations with your favorite business apps. Free plan includes unlimited users, 10 stacks, 2GB attachment per stack.
  • TiDB Cloud — TiDB is an open source MySQL compatible distributed HTAP RDBMS. TiDB Serverless provides 5GB of row storage, and 5GB of column storage, and 50 million Request Units (RUs) available for free each month.
  • Turso by ChiselStrike - Turso is SQLite Developer Experience in an Edge Database. Turso provides Free Forever starter plan, 8 GB of total storage, Up to 3 databases, Up to 3 locations, 1 billion row reads per month, and Local development support with SQLite.
  • InfluxDB — Timeseries database, free up to 3MB/5 minutes writes, 30MB/5 minutes reads and 10,000 cardinalities series
  • restdb.io - a fast and simple NoSQL cloud database service. With restdb.io you get schema, relations, automatic REST API (with MongoDB-like queries) and an efficient multi-user admin UI for working with data. Free plan allows 3 users, 2500 records and 1 API requests per second.
  • cockroachlabs.com — Free CockroachDB up to 5GB and 1vCPU (limited request units)
  • Neo4j Aura — Managed native Graph DBMS / analytics platform with a Cypher query language and a REST API. Limits on graph size (50k nodes, 175k relationships).
  • Neon — Managed PostgreSQL, 10 branches, 3 GB of storage per branch, no limit on Active time for the primary branch compute, 100 hours of Active time per month (total) for non-primary branch computes.
  • Dgraph Cloud — Managed native Graph DBMS with a GraphQL API. Limited to 1 MB data transfer per day.
  • Tinybird - A serverless managed ClickHouse with connection-less data ingest over HTTP and let's you publish SQL queries as managed HTTP APIs. No time limit on free-tier, 10GB storage + 1000 API requests per day.
  • TigerGraph Cloud — Managed native Graph DBMS / analytics platform with a SQL-like graph query language and a REST API. One free instance with 2 vCPU, 8GB Memory, and 50GB storage that sleeps after 1 hour of inactivity.
  • TerminusCMS — Managed free service for TerminusDB, a document and graph database written in Prolog and Rust. Free for dev, paid service for enterprise deployments and support.
  • Planetscale - PlanetScale is a MySQL compatible, serverless database platform powered by Vitess, 1 databases for free with 1 Production branch and 1 Development branch, 5GB storage, 1 Billion rows read/mo per database, and 10 Million rows written/mo per database.
  • YugabyteDB - YugabyteDB is a distributed SQL database compatible with PostgreSQL. The cloud free tier is a 2 vCPU, 4GB RAM, 10GB Disk.
  • filess.io - filess.io is a platform where you can create 1 database of the following DBMS for free: MySQL, MariaDB, MongoDB, PostgreSQL.
  • xata.io - Xata is a serverless database with built-in powerful search and analytics. One API, multiple type-safe client libraries, and optimized for your development workflow. Free-forever tier is sufficient for hobby developers which comes with 3 units of Xata, please refer to website for unit definition.
  • 8base.com - 8base is a full-stack low-code development platform built for JavaScript developers built on top of MySQL and GraphQL and serverless backend-as-a-service, it allows you to start building web applications quicky using a UI app builder and scale easily, Free tier includes: rows: 2,500, Storage: 500Mb, Serverless computing: 1Gb/h, client app users: 5.

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Tunneling, WebRTC, Web Socket Servers and Other Routers

  • Pinggy — Public URLs for localhost with a single command, no downloads required. HTTPS / TCP / TLS tunnels. Free plan has 60 minutes tunnel life time.
  • conveyor.cloud — Visual Studio extension to expose IIS Express to the local network or over a tunnel to a public URL.
  • Hamachi — LogMeIn Hamachi is a hosted VPN service that lets you securely extend LAN-like networks to distributed teams with free plan allows unlimited networks with up to 5 peoples
  • localhost.run — Expose locally running servers over a tunnel to a public URL.
  • localtunnel — Expose locally running servers over a tunnel to a public URL. Free hosted version, and open source.
  • ngrok.com — Expose locally running servers over a tunnel to a public URL.
  • Radmin VPN — Connect multiple computers together via a VPN enabling LAN-like networks. Unlimited peers. (Hamachi alternative)
  • segment.com — Hub to translate and route events to other third-party services. 100,000 events/month free

  • STUN — Session Traversal of User Datagram Protocol [UDP] Through Network Address Translators [NATs])

  • Tailscale — Zero config VPN, using the open source WireGuard protocol. Installs on MacOS, iOS, Windows, Linux, and Android devices. Free plan for personal use with 100 devices and 3 user.
  • webhookrelay.com — Manage, debug, fan-out and proxy all your webhooks to public or internal (ie: localhost) destinations. Also, expose servers running in a private network over a tunnel by getting a public HTTP endpoint (https://yoursubdomain.webrelay.io <----> http://localhost:8080).
  • Hookdeck — Develop, test and monitor your webhooks from a single place. 100K requests and 100K attempts per month with 3 days retention.
  • Xirsys — Unlimited STUN usage + 500 MB monthly TURN bandwidth, capped bandwidth, single geographic region.
  • ZeroTier — FOSS managed virtual Ethernet as a service. Unlimited end-to-end encrypted networks of 25 clients on free plan. Clients for desktop/mobile/NA; web interface for configuration of custom routing rules and approval of new client nodes on private networks
  • LocalXpose — Reverse proxy that enables you to expose your localhost servers to the internet. Free plan has 15 minutes tunnel life time.
  • Traefik-Hub - Publish locally running services over a tunnel to a public custom URL and secure them with access control. Free for 5 services in one cluster.
  • Expose - Expose local sites via secure tunnels. Free plan includes EU Server, Random subdomains and Single user.
  • Metered — Free TURN server with 50GB included monthly TURN usage.

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Issue Tracking and Project Management

  • acunote.com — Free project management and SCRUM software for up to 5 team members
  • asana.com — Free for private project with collaborators
  • Backlog — Everything your team needs to release great projects in one platform. Free plan offers 1 Project with 10 users & 100MB storage.
  • Basecamp - To-do lists, milestone management, forum-like messaging, file sharing, and time tracking. Up to 3 projects, 20 users, and 1GB of storage space.
  • bitrix24.com — Intranet and project management tool. Free plan has 5GB for unlimited users.
  • cacoo.com — Online diagrams in real-time: flowchart, UML, network. Free max. 15 users/diagram, 25 sheets
  • Chpokify — Teams based Planning Poker that saves time of sprint estimation. Free up to 5 users, free Jira integrations, unlimited video calls, unlimited teams, unlimited sessions.
  • clickup.com — Project management. Free, premium version with cloud storage. Mobile applications and Git integrations available
  • Clockify - Time tracker and timesheet app that lets you track work hours across projects. Unlimited users, free forever.
  • Cloudcraft — Design a professional architecture diagram in minutes with the Cloudcraft visual designer, optimized for AWS with smart components that show live data too. Free plan has unlimited private diagrams for single user.
  • Codegiant — Project Management with Repository hosting & CI/CD. Free Plan Offers Unlimited Repositories,Projects & Documents with 5 Team Members. 500 CI/CD minutes per month. 30000 Serverless Code Run minutes per month.1GB repository storage.
  • Confluence - Atlassian's content collaboration tool used to help teams collaborate and share knowledge efficiently. Free plan up to 10 users.
  • contriber.com — Customizable project management platform, free starter plan, 5 workspaces
  • diagrams.net — Online diagrams stored locally, in Google Drive, OneDrive or Dropbox. Free for all features and storage levels
  • freedcamp.com - tasks, discussions, milestones, time tracking, calendar, files and password manager. Free plan with unlimited projects, users and files storage.
  • easyretro.io — Simple and intuitive sprint retrospective tool. Free plan has 3 public boards and 1 survey per board per month.
  • GForge — Project Management & Issue Tracking toolset for complex projects with self-premises and SaaS options. SaaS free plan offers first 5 users free & free for Open Source Projects.
  • gleek.io — Free description-to-diagrams tool for developers. Create informal, UML class, object, or entity-relationship diagrams using your keyword.
  • GraphQL Inspector - GraphQL Inspector ouputs a list of changes between two GraphQL schemas. Every change is precisely explained and marked as breaking, non-breaking or dangerous.
  • huboard.com — Instant project management for your GitHub issues, free for Open Source
  • Hygger — Project management platform. Free plan offers unlimited users,projects & boards with 100 MB Storage.
  • Instabug — A comprehensive bug reporting and in-app feedback SDK for mobile apps. Free plan up to 1 app and 1 member.
  • Ilograph — interactive diagrams that allow users to see their infrastructure from multiple perspectives and levels of detail. Diagrams can be expressed in code. Free tier has unlimited private diagrams with up to 3 viewers.
  • Jira — Advanced software development project management tool used in many corporate environments. Free plan up to 10 users.
  • kanbanflow.com — Board-based project management. Free, premium version with more options
  • kanbantool.com — Kanban board-based project management. Free plan has 2 boards, 2 users, without atachments or files.
  • Kitemaker.co - Collaborate through all phases of the product development process and keep track of work across Slack, Discord, Figma, and Github. Unlimited users, unlimited spaces. Free plan up to 250 work items.
  • Kiter.app - Let's anyone organize their job search and keep track of interviews, opportunities, and connections. Powerful web app and chrome extension. Completely free.
  • Kumu.io — Relationship maps with animation, decorations, filters, clustering, spreadsheet imports and more. Free tier allows unlimited public projects. Graph size unlimited. Free private projects for students. Sandbox mode is available if you prefer to not leave your file publicly online (upload, edit, download, discard).
  • Linear — Issue tracker with streamlined interface. Free for unlimited members, up to 10MB file upload size, 250 issues (excluding Archive)
  • Lucidchart - A online diagram tools with collaboration features. Free plan with 3 editable documents, 100 professional templates and basic collaboration features.
  • MeisterTask — Online task management for teams. Free up to 3 projects, unlimited project members.
  • MeuScrum - Free online scrum tool with kanban board
  • nTask — Project management software that enables your teams tn collaborate, plan, analyze and manage everyday tasks. Basic Plan free forever with 100 MB storage, 5 users/team. Unlimited workspaces, meetings,tasks, timesheets and issue tracking.
  • Ora - Agile task management & team collaboration. Free for up to 3 users and files are limited to 10 MB.
  • pivotaltracker.com — Free for unlimited public projects and two private projects with 3 total active users (read-write) and unlimited passive users (read-only).
  • Plaky - Free task management (kanban) software without any limits. Unlimited users, unlimited projects, free forever.
  • plan.io — Project Management with Repository Hosting and more options. Free for 2 users with 10 customers and 500MB Storage
  • Plane - Plane is a simple, extensible, open source project and product management tool. Free for unlimited members, up to 5MB file upload size, 1000 issues.
  • planitpoker.com — Free online planning poker (estimation tool)
  • point.poker - Online Planning Poker (consensus-based estimation tool). Free for unlimited users, teams, sessions, rounds and votes. No registration required.
  • ScrumFast - Scrum board with a very intuitive interface, free up to 5 users.
  • Shake - In-app bug reporting and feedback tool for mobile apps. Free plan, 10 bug reports per app/per month.
  • Shortcut - Project management platform. Free for up to 10 users forever.
  • SpeedBoard - Board for Agile and Scrum retrospectives - Free.
  • SuperPM - Versatile project management platform. Free for up to 3 projects, unlimited users, 1 GB storage.
  • Tadum - Meeting agenda and minutes app designed for recurring meetings, free for teams up to 10
  • taiga.io — Project management platform for startups and agile developers, free for Open Source
  • Tara AI — Simple sprint management service. Free plan has unlimited tasks, sprints and workspaces, with no user limits.
  • targetprocess.com — Visual project management, from Kanban and Scrum to almost any operational process. Free for unlimited users, up to 1,000 data entities {more details}
  • taskade.com — Real-time collaborative task lists and outlines for teams. Free plan has: 1 workspace with unlimited tasks and projects; 1GB file storage; 1 week project history; 5 attendees per video meeting.
  • taskulu.com — Role based project management. Free up to 5 users. Integration with GitHub/Trello/Dropbox/Google Drive
  • teamwork.com — Project management & Team Chat. Free for 5 users and 2 projects. Premium plans available.
  • teleretro.com — Simple and fun retrospective tool with icebreakers, gifs and emojis. Free plan includes 3 retros and unlimited members.
  • testlio.com — Issue tracking, test management and beta testing platform. Free for private use
  • terrastruct.com — Online diagram maker specifically for software architecture. Free tier up to 4 layers per diagram.
  • todoist.com — Collaborative and individual task management. Free plan has: 5 active projects, 5 users in project, file uploading up to 5MB, 3 filters, 1 week activity history.
  • trello.com — Board-based project management. Unlimited Personal Boards, 10 Team Boards.
  • Tweek — Simple Weekly To-Do Calendar & Task Management.
  • ubertesters.com — Test platform, integration and crowdtesters, 2 projects, 5 members
  • vabotu - A collaborative tool for project management. Free and other plans are available. The Freelance plan is for 10 users, include messaging, task-boards, 5GB online storage, workspaces, export data.
  • Wikifactory — Product designing Service with Projects, VCS & Issues. Free plan offers unlimited projects & collaborators and 3GB storage.
  • Yodiz — Agile development and issue tracking. Free up to 3 users, unlimited projects.
  • YouTrack — Free hosted YouTrack (InCloud) for FOSS projects, private projects (free for 3 users). Includes time tracking and agile boards
  • zenhub.com — The only project management solution inside GitHub. Free for public repos, OSS and nonprofit organizations
  • zenkit.com — Project management and collaboration tool. Free for up to 5 members, 5 GB attachments.
  • Zube — Project management with free plan for 4 Projects & 4 users. GitHub integration available.
  • Toggl — Provides 2 free productivity tools. Toggl Track for time management and tracking app with a free plan provides seamless time tracking and reporting designed for freelancers in mind. It has unlimited tracking records, projects, clients, tags, reporting and more. And Toggl Plan for task planning that comes with a free plan for solo developers with unlimited tasks, milestones and timelines.
  • Sflow — sflow.io is a project management tool that is built for software agile development, marketing, sales, and customer support, especially for outsourcing project and cross-organization collaboration project. Free plan up to 3 projects and 5 members.
  • Pulse.red — Free Minimalistic Time Tracker and Timesheet app for projects.

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Storage and Media Processing

  • AndroidFileHost - Free file sharing platform with unlimited speed, bandwidth, file count, download count, etc. Mainly aimed for Android dev related files like APK build, custom ROM & modifications, etc. But seems to accept any other files as well.
  • borgbase.com — Simple and secure offsite backup hosting for Borg Backup. 10 GB free backup space and 2 repositories.
  • icedrive.net - Simple cloud storage service. 10 GB free storage
  • sync.com - End-to-End cloud storage service. 5 GB free storage
  • pcloud.com - Cloud storage service. Up to 10 GB free storage
  • sirv.com — Smart Image CDN with on-the-fly image optimization and resizing. Free tier includes 500 MB of storage and 2 GB bandwidth.
  • cloudimage.io — Full image optimization and CDN service with 1500+ Points of Presence around the world. A variety of image resizing, compression, watermarking functions. Open source plugins for responsive images, 360 image making and image editing. Free monthly plan with 25GB of CDN traffic and 25GB of cache storage and unlimited transformations.
  • cloudinary.com — Image upload, powerful manipulations, storage and delivery for sites and apps, with libraries for Ruby, Python, Java, PHP, Objective-C and more. Free tier includes 25 monthly credits. 1 credit is equal to 1,000 image transformations, 1 GB of storage, or 1 GB of CDN usage.
  • embed.ly — Provides APIs for embedding media in a webpage, responsive image scaling, extracting elements from a webpage. Free for up to 5,000 URLs/month at 15 requests/second
  • filestack.com — File picker, transform and deliver, free for 250 files, 500 transformations and 3 GB bandwidth
  • file.io - 2 GB storage of files. A file is auto-deleted after 1 download. REST API to interact with the storage. Rate limit 1 request/minute.
  • freetools.site — Free online tools. Convert or edit documents, images, audio, video and more.
  • GoFile.io - Free file sharing and storage platform, can be used via web based UI & also API. unlimited file size, bandwidth, download count, etc. But when a file becomes inactive (no download for more than 10 days), it will be deleted.
  • gumlet.com — Image resize-as-a-service. It also optimizes images and performs delivery via CDN. Free tier includes 1 GB bandwidth and unlimited number of image processing every month for 1 year.
  • image-charts.com — Unlimited image chart generation with a watermark
  • Imgbot — Imgbot is a friendly robot that optimizes your images and saves you time. Optimized images mean smaller file sizes without sacrificing quality. It's free for open source.
  • imgen - Free unlimited social cover image generation API, no watermark
  • kraken.io — Image optimization for website performance as a service, free plan up to 1 MB file size
  • kvstore.io — Key-value storage service. Free tier allows 100 keys, 1KB/key, 100 calls/hour
  • npoint.io — JSON store with collaborative schema editing
  • nitropack.io - Accelerate your site's speed on autopilot with complete front-end optimization (caching, images and code optimization, CDN). Free for up to 5,000 pageviews/month
  • otixo.com — Encrypt, share, copy and move all your cloud storage files from one place. Basic plan provides unlimited files transfer with 250 MB max. file size and allows 5 encrypted files
  • packagecloud.io — Hosted Package Repositories for YUM, APT, RubyGem and PyPI. Limited free plans, open source plans available via request
  • getpantry.cloud — A simple JSON data storage API that's perfect for personal projects, hackathons and mobile apps!
  • piio.co — Responsive image optimization and delivery for every website. Free plan for developers and personal websites. Includes free CDN, WebP and Lazy Loading out of the box.
  • Pinata IPFS — Pinata is the simplest way to upload and manage files on IPFS. Our friendly user interface combined with our IPFS API makes Pinata the easiest IPFS pinning service for platforms, creators, and collectors. 1 GB storage free along with access to API.
  • placekitten.com — A quick and simple service for getting pictures of kittens for use as placeholders
  • plot.ly — Graph and share your data. Free tier includes unlimited public files and 10 private files
  • podio.com — You can use Podio with a team of up to five people and try out the features of the Basic Plan, except user management
  • QuickChart — Generate embeddable image charts, graphs, and QR codes
  • redbooth.com — P2P file syncing, free for up to 2 users

  • resmush.it — reSmush.it is a FREE API that provides image optimization. reSmush.it has been implemented on the most common CMS such as Wordpress, Drupal or Magento. reSmush.it is the most used image optimization API with more than 7 billions images already treated, and is still Free of charge.

    • Shotstack - API to generate and edit video at scale. Free up to 20 minutes of rendered video per month
    • tinypng.com — API to compress and resize PNG and JPEG images, offers 500 compressions for free each month
    • transloadit.com — Handles file uploads and encoding of video, audio, images, documents. Free for Open source, charities, and students via the GitHub Student Developer Pack. Commercial applications get 2 GB free for test driving
    • twicpics.com - Responsive images as a service. It provides an image CDN, a media processing API and frontend library to automate image optimization. The service is free up to 3GB trafic/month.
    • uploadcare.com — Uploadcare provides media pipeline with ultimate toolkit based on cutting-edge algorithms. All features are available for developers absolutely for free: File Uploading API and UI, Image CDN and Origin Services, Adaptive Delivery and Smart Compression. Limit free tier has 3000 uploads, 3 GB traffic and 3 GB storage.
    • imagekit.io – Image CDN with automatic optimization, real-time transformation, and storage that you can integrate with existing setup in minutes. Free plan includes up to 20GB bandwidth per month.
    • internxt.com – Internxt Drive is a zero-knowledge file storage service that's based on absolute privacy and uncompromising security. Sign up and get 10 GB for free, forever!
    • degoo.com – AI based cloud storage with free up to 20 Gb, 3 devices, 5 Gb referral bonus (90 days account inactivity).

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Design and UI

  • AllTheFreeStock - a curated list of free stock images, audio and videos.
  • Float UI - free web development tool for easy creation of modern, responsive websites with sleek design, even for non-designers.
  • Ant Design Landing Page - Ant Design Landing Page provides a template built by Ant Motion's motion components. It has a rich homepage template, downloads the template code package, and can be used quickly. You can also use the editor to quickly build your own dedicated page.
  • Backlight — With collaboration between developers and designers at heart, Backlight is a very complete coding platform where teams build, document, publish, scale and maintain Design Systems.Free plan allows up to 3 editors working on 1 design system with unlimited viewers.
  • BoxySVG — A free installable Web app for drawing SVGs and exporting in svg,png,jpeg an other formats.
  • Circum Icons - Consistent open source icons as SVG for React, Vue and Svelte.
  • clevebrush.com — Free Graphics Design / Photo Collage App, also they offer paid integration of it as component.
  • cloudconvert.com — Convert anything to anything. 208 supported formats including videos to gif.
  • CodeMyUI - Handpicked collection of Web Design & UI Inspiration with Code Snippets.
  • ColorKit - Create color palettes online or get inspiration from top palettes.
  • coolors - Color palette generator. Free.
  • Branition - Hand curated color pallets best fitted for brands.
  • css-gradient.com - Free tool to easily generate custom cross browser css gradients. In RGB and HEX format.
  • easyvectors.com — EasyVectors.com is a stock of quality free SVG vector art. Download best vector graphics absolutely for free.
  • figma.com — Online, collaborative design tool for teams; free tier includes unlimited files and viewers with a max of 2 editors and 3 projects.
  • framer.com - Framer helps you iterate and animate interface ideas for your next app, website, or product—starting with powerful layouts. For anyone validating Framer as a professional prototyping tool: unlimited viewers, up to 2 editors, up to 3 projects.
  • freeforcommercialuse.net — FFCU Worry-free model/property release stock photos
  • Gradientos - Makes choosing a gradient fast and easy.
  • Icon Horse – Get the highest resolution favicon for any website from our simple API.
  • Icons8 — Icons, illustrations, photos, music, and design tools. Free Plan offers Limited formats in lower resolution. Link to Icons8 when you use our assets.
  • Invision App - UI design and prototyping tool. Desktop and webapp available. Free to use with 1 active prototype.
  • landen.co — Generate, edit and publish beautiful websites and landing pages for your startup. All without code. Free tier allows you to have one website, fully customizable and published on the web.
  • Quant Ux - Quant Ux is a prototyping and design tool. - It's completely free and also open source.
  • lensdump.com - Free cloud image hosting.
  • Lorem Picsum - A Free tool, easy to use stylish placeholders. Just add your desired image size (width & height) after our URL, and you'll get a random image.
  • LottieFiles - The world’s largest online platform for the world’s smallest animation format for designers, developers, and more. Access Lottie animation tools and plugins for Android, iOS, and Web.
  • MagicPattern — A collection of CSS & SVG background generators & tools for gradients, patterns, and blobs.
  • marvelapp.com — Design, prototyping and collaboration, free plan limited to one user and one project.
  • Mindmup.com — Unlimited mind maps for free, and store them in the cloud. Your mind maps are available everywhere, instantly, from any device.
  • Mockplus iDoc - Mockplus iDoc is a powerful design collaboration & handoff tool. Free Plan includes 3 users and 5 projects with all features available.
  • mockupmark.com — Create realistic t-shirt and clothing mockups for social media and E-commerce, 40 free mockups.
  • Octopus.do — Visual sitemap builder. Build your website structure in real-time and rapidly share it to collaborate with your team or clients.
  • Pencil - Open source design tool using Electron.
  • Penpot - Web based, open source design and prototyping tool. Supports SVG. Completely free.
  • pexels.com - Free stock photos for commercial use. Has free API that allows you to search photos by keywords.
  • photopea.com — A Free, Advanced online design editor with Adobe Photoshop UI supporting PSD, XCF & Sketch formats (Adobe Photoshop, Gimp and Sketch App).
  • pixlr.com — Free online browser editor on the level of commercial ones.
  • Plasmic - A fast, easy to use, powerful web design tool and page builder that integrates into your codebase. Build responsive pages or complex components; optionally extend with code; and publish to production sites and apps.
  • Pravatar - Generate random/placeholder fake avatar, which url can be directly hotlinked in your web/app.
  • Proto.io - Create fully interactive UI prototypes without coding. Free tier available when free trial ends. Free tier includes: 1 user, 1 project, 5 prototypes, 100MB online storage and preview in proto.io app.
  • resizeappicon.com — A simple service to resize and manage your app icons.
  • Rive — Create and ship beautiful animations to any platform. Free forever for Individuals. The service is a editor which hosts all the graphics on their servers as well. They also provide runtimes for many platforms to run graphics made using Rive.
  • storyset.com — Create awesome free customised illustrations for your project using this tool.
  • smartmockups.com — Create product mockups, 200 free mockups.
  • tabler-icons.io — Over 1500 free copy and paste SVG editable icons.
  • UI Avatars - Generate avatars with initials from names. Which the urls can be directly hotlinked in your web/app. Support config parameters via the url.
  • unDraw - A constantly updated collection of beautiful svg images that you can use completely free and without attribution.
  • unsplash.com - Free stock photos for commercial and noncommercial purposes (do-whatever-you-want license).
  • vectr.com — Free Design App for Web + Desktop.
  • walkme.com — Enterprise Class Guidance and Engagement Platform, free plan 3 walk-thrus up to 5 steps/walk.
  • Webflow - WYSIWYG web site builder with animations and website hosting. Free for 2 projects.
  • Updrafts.app - WYSIWYG web site builder for tailwindcss based designs. Free for non-commercial usage.
  • whimsical.com - Collaborative flowcharts, wireframes, sticky notes and mind maps. Create up to 4 free boards.
  • Zeplin — Designer and developer collaboration platform. Show designs, assets and styleguides. Free for 1 project.
  • Pixelixe — Create and edit engaging and unique graphics and images online.
  • Responsively App - A free dev-tool for faster and precise responsive web application development.
  • SceneLab - Online mockup graphics editor with an ever-expanding collection of free design templates
  • xLayers - Preview and convert Sketch design files into Angular, React, Vue, LitElement, Stencil, Xamarin and more (free and open source at https://github.com/xlayers/xlayers)
  • Grapedrop — Responsive, powerful, SEO optimized web page builder based on GrapesJS Framework. Free for first 5 pages, unlimited custom domains, all features and simple usage.
  • Mastershot - Completely free browser-based video editor. No watermark, up to 1080p export options.
  • Unicorn Platform - Effortless landing page builder with hosting. 1 website for free.
  • react-favicon.com - Generate Favicons for your web site using React and JSX using any font and icon library.
  • svgrepo.com - Explore, search and find the best fitting icons or vectors for your projects using wide variety vector library. Download free SVG Vectors for commercial use.
  • haikei.app - Haikei is a web app to generate unique SVG shapes, backgrounds, and patterns – ready to use with your design tools and workflow.
  • Canva - Free online design tool to create visual content.
  • Superdesigner - A collection of free design tools to create unique backgrounds, patterns, shapes, images, and more with just a few clicks.
  • TeleportHQ - Low-code Front-end Design & Development Platform. TeleportHQ is the collaborative front-end platform to create and publish your headless static websites instantly. 3 free projects, unlimited collaborators, free code export.
  • vector.express — Convert your AI, CDR, DWG, DXF, EPS, HPGL, PDF, PLT, PS and SVG vector fast and easily.
  • Vertopal - Vertopal is a free online platform for converting files to a variety of file formats. Including developer converters like JPG to SVG, GIF to APNG, PNG to WEBP, JSON to XML and etc.
  • okso.app - Minimalistic online drawing app. Allows creating fast sketches and visual notes. Exports sketches to PNG, JPG, SVG, and WEBP. Also installable as PWA. Free to use for everyone (no registration is needed).
  • Wdrfree SVG - Black and White Free SVG Cut files.
  • Lucide - Free customizable and consistent SVG icon toolkit.
  • MDBootstrap - Free for personal & commercial use Bootstrap, Angular, React, and Vue UI Kits with over 700 components, stunning templates, 1-min installation, extensive tutorials & huge community.
  • Tailwind Elements - Free Bootstrap components recreated with Tailwind CSS, but with better design and more functionalities.
  • DaisyUI -- Free. "Use Tailwind CSS but write fewer class names" offers components like buttons.
  • Scrollbar.app -- Simple free web app for designing custom scrollbars for the web.
  • css.glass -- Free web app for creating glassmorphic designs using CSS.
  • hypercolor.dev -- A curated collection of of Tailwind CSS color gradients, also provides a variety of generators to create your own.
  • iconify.design -- A collection of more than 100 icon packs with a unified interface. Allows you to search for icons across packs and export individual icons as SVGs or for popular web frameworks.
  • NextUI -- Free. Beautiful, fast and modern React & Next.js UI library.
  • Glyphs -- Free, The Mightiest Icons on the Web, Fully editable & truly open source design system.
  • ShadcnUI -- Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.
  • HyperUI -- Free Open Source Tailwind CSS Components.

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Design Inspiration

  • awwwards. - [Top websites] A showcases of all the best designed websites (voted on by designers).
  • Behance - [Design showcase] A place where designers showcase their work. Filterable with categories for UI/UX projects.
  • dribbble - [Design showcase] Unique design inspiration, generally not from real applications.
  • Landings - [Web Screenshots] Find the best landing pages for your design inspiration based on your preference.

  • LovelyLanding.net - [Landing Page Designs] Frequently updated landing page screenshots. Includes Desktop, Tablet and Mobile screeshots.

    • Mobbin - [Mobile screenshots] Save hours of UI & UX research with our library of 50,000+ fully searchable mobile app screenshots.
    • Mobile Patterns - [Mobile screenshots] A design inspirational library featuring finest UI UX Patterns (iOS and Android) for designers, developers, and product makers to reference.
    • Screenlane - [Mobile screenshots] Get inspired and keep up with the latest web & mobile app UI design trends. Filterable by pattern and app.
    • scrnshts - [Mobile screenshots] A hand-picked collection of the finest app store design screenshots.
    • UI Garage - [Mobile and web screenshots] Daily UI inspiration & patterns for designers, developers to find inspiration, tools and the best resources for your project.
    • Refero - [Web screenshots] Tagged and searchable collection of design references from great web applications.

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Data Visualization on Maps

  • IP Geolocation — Free DEVELOPER plan available with 30K requests/month.
  • carto.com — Create maps and geospatial APIs from your data and public data.
  • Clockwork Micro — Map tools that work like clockwork. 50,000 free queries per month (map tiles, db2vector, elevation).
  • developers.arcgis.com — APIs and SDKs for maps, geospatial data storage, analysis, geocoding, routing, and more across web, desktop, and mobile. 2,000,000 free basemap tiles, 20,000 non-stored geocodes, 20,000 simple routes, 5,000 drive time calculations, 5GB free tile+data storage per month.
  • Foursquare - Location discovery, venue search, and context-aware content from Places API and Pilgrim SDK.
  • geoapify.com - Vector and raster map tiles, geocoding, places, routing, isolines APIs. 3000 free requests / day.
  • geocod.io — Geocoding via API or CSV Upload. 2,500 free queries/day.
  • geocodify.com — Geocoding and Geoparsing via API or CSV Upload. 10k free queries/month.
  • geojs.io - Highly available REST/JSON/JSONP IP Geolocation lookup API.
  • giscloud.com — Visualize, analyze and share geo data online.
  • graphhopper.com A free package for developers is offered for Routing, Route Optimization, Distance Matrix, Geocoding, Map Matching.
  • here — APIs and SDKs for maps and location-aware apps. 250k transactions/month for free.
  • locationiq.com — Geocoding, Maps, and Routing APIs. 5000 requests/day for free.
  • mapbox.com — Maps, geospatial services and SDKs for displaying map data.
  • maptiler.com — Vector maps, map services and SDKs for map visualisation. Free vector tiles with weekly update and four map styles.
  • nextbillion.ai - Maps related services: Geocoding, Navigation (Direction, Routing, Route Optimization, Distance Matrix), Maps SDK (Vector, Static, Mobile SDK). Free with specified quota for each services.
  • opencagedata.com — Geocoding API that aggregates OpenStreetMap and other open geo sources. 2,500 free queries/day.
  • osmnames — Geocoding, search results ranked by the popularity of related Wikipedia page.
  • positionstack - Free geocoding for global places and coordinates. 25.000 Requests per month for personal use.
  • stadiamaps.com — Map tiles, routing, navigation, and other geospatial APIs. 2,500 free map views and API requests / day for non-commercial usage and testing.
  • maps.stamen.com - Free map tiles and tile hosting.
  • ipstack - Locate and identify Website Visitors by IP Address
  • Geokeo api - Geocoding api with language correction and more. Worldwide coverage. 2,500 free daily queries

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Package Build System

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IDE and Code Editing

  • 3v4l - Free online PHP shell and snippet sharing site, runs your code in 300+ PHP versions
  • Android Studio — Android Studio provides the fastest tools for building apps on every type of Android device. Open Source IDE, free for everyone and the best to develop Android apps. Available for Windows,Mac,Linux and even ChromeOS!
  • Apache Netbeans — Development Environment, Tooling Platform and Application Framework.
  • apiary.io — Collaborative design API with instant API mock and generated documentation (Free for unlimited API blueprints and unlimited user with one admin account and hosted documentation).
  • Binder - Turn a Git repo into a collection of interactive notebooks. It is a free, public service.
  • BlueJ — A free Java Development Environment designed for beginners, used by millions worldwide. Powered by Oracle & simple GUI to help beginners.
  • Bootify.io - Spring Boot app generator with custom database and REST API.
  • cacher.io — Code snippet organizer with labels and support for 100+ programming languages.
  • Code::Blocks — Free Fortran & C/C++ IDE. Open Source and runs on Windows,macOS & Linux.
  • codiga.io — Coding Assistant that lets you search, define and reuse code snippets directly in your IDE. Free for individual and small organizations.
  • codesnip.com.br — Simple code snippets manager with categories, search and tags. free and unlimited.
  • cocalc.com — (formerly SageMathCloud at cloud.sagemath.com) — Collaborative calculation in the cloud. Browser access to full Ubuntu with built-in collaboration and lots of free software for mathematics, science, data science, preinstalled: Python, LaTeX, Jupyter Notebooks, SageMath, scikitlearn, etc.
  • code.cs50.io - Visual Studio Code for CS50 is a web app at code.cs50.io that adapts GitHub Codespaces for students and teachers.
  • codepen.io — CodePen is a playground for the front end side of the web.
  • codesandbox.io — Online Playground for React, Vue, Angular, Preact and more.
  • Components.studio - Code components in isolation, visualize them in stories, test them and publish them on npm.
  • Eclipse Che - Web based and Kubernetes-Native IDE for Developer Teams with multi-language support. Open Source and community driven. A online instance hosted by Red Hat is available at workspaces.openshift.com.
  • fakejson.com — FakeJSON helps you quickly generate fake data using its API. Make an API request describing what you want and how you want it. The API returns it all in JSON. Speed up the go to market process for ideas and fake it till you make it.
  • GitPod — Instant, ready-to-code dev environments for GitHub projects. Free tier includes 50 hours/month.
  • ide.goorm.io goormIDE is full IDE on cloud. multi-language support, linux-based container via the fully-featured web-based terminal, port forwarding, custom url, real-time collaboration and chat, share link, Git/Subversion support. There are many more features (free tier includes 1GB RAM and 10GB Storage per container, 5 Container slot).
  • JDoodle — Online compiler and editor for more than 60 programming languages with a free plan for REST API code compiling up to 200 credits per day.
  • jetbrains.com — Productivity tools, IDEs and deploy tools (aka IntelliJ IDEA, PyCharm, etc). Free license for students, teachers, Open Source and user groups.
  • jsbin.com — JS Bin is another playground and code sharing site of front end web (HTML, CSS and JavaScript. Also supports Markdown, Jade and Sass).
  • jsfiddle.net — JS Fiddle is a playground and code sharing site of front end web, support collaboration as well.
  • JSONPlaceholder Some REST API endpoints that return some fake data in JSON format. The source code is also available if you would like to run the server locally.
  • Lazarus — Lazarus is a Delphi compatible cross-platform IDE for Rapid Application Development.
  • micro-jaymock - Tiny API mocking microservice for generating fake JSON data.
  • mockable.io — Mockable is a simple configurable service to mock out RESTful API or SOAP web-services. This online service allows you to quickly define REST API or SOAP endpoints and have them return JSON or XML data.
  • mockaroo — Mockaroo lets you generate realistic test data in CSV, JSON, SQL, and Excel formats. You can also create mocks for back-end API.
  • Mocklets - a HTTP-based mock API simulator, which helps simulate APIs for faster parallel development and more comprehensive testing, with lifetime free tier.
  • Paiza — Develop Web apps in Browser without having the need to setup anything. Free Plan offers 1 server with 24 hours lifetime and 4 hours running time per day with 2 CPU cores, 2 GB RAM and 1 GB storage.
  • Prepros - Prepros can compile Sass, Less, Stylus, Pug/Jade, Haml, Slim, CoffeeScript and TypeScript out of the box, reloads your browsers and makes it really easy to develop & test your websites so you can focus on making them perfect. You can also add your own tools with just a few clicks.
  • Replit — A cloud coding environment for various program languages.
  • SoloLearn — A cloud programming playground well-suited for running code snippets. Supports various programming languages. No registration required for running code but required when you need to save code on their platform. Also offers free courses for begginers and intermediate level coders.
  • stackblitz.com — Online/Cloud Code IDE to create, edit, & deploy fullstack apps. Support any popular NodeJs based frontend & backend frameworks. Shortlink to create new project: https://node.new.

  • Visual Studio Code - Code editor redefined and optimized for building and debugging modern web and cloud applications. Developed by Microsoft.

  • Visual Studio Community — Fully-featured IDE with thousands of extensions, cross-platform app development (Microsoft extensions available for download for iOS and Android), desktop, web and cloud development, multi-language support (C#, C++, JavaScript, Python, PHP and more).
  • VSCodium - Community-driven, without telemetry/tracking, and freely-licensed binary distribution of Microsoft’s editor VSCode
  • wakatime.com — Quantified self-metrics about your coding activity, using text editor plugins, limited plan for free.
  • WebComponents.dev — In-browser IDE to code web components in isolation with 58 templates available, supporting stories and tests.
  • PHPSandbox — Online development environment for PHP.

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Analytics, Events and Statistics

  • Hightouch - Hightouch is a Reverse ETL platform that helps you sync your customer data from your data warehouse to your CRM, marketing, and support tools. Free tier that offers you one destination to sync data to.
  • Avo — Simplified analytics release workflow. Single-source-of-truth tracking plan, type safe analytics tracking library, in-app debuggers, data observability to catch all data issues before you release. Free for 2 workspace members and 1 hour data observability lookback.
  • Branch — Mobile Analytics Platform. Free Tier offers upto 10K Mobile App Users with deep-linking & other services.
  • Cauldron — Analytics open source solution that allows users to aggregate information from multiple collaboration platforms as different types of data sources (Git, Github, Gitlab...). Free tier includes unlimited number of reports.
  • Census — Reverse ETL & Operational Analytics Platform. Sync 10 fields from your data warehouse to 60+ SaaS like Salesforce, Zendesk, or Amplitude.
  • Clicky — Website Analytics Platform. Free Plan for 1 website with 3000 views analytics.
  • Databox — Business Insights & Analytics by combining other analytics & BI platforms. Free Plan offers 3 users, dashboards & data sources. 11M historical data records.
  • indicative.com — Customer analytics platform to optimize customer engagement, increase conversion, and improve retention. Free up to 25M events/month, 6 months data retention.
  • Panelbear.com — Blazingly fast and private, free tier includes 5,000 pageviews per month for unlimited websites
  • Hitsteps.com — 2,000 pageviews per month for 1 website
  • amplitude.com — 1 million monthly events, up to 2 apps
  • GoatCounter — GoatCounter is an open source web analytics platform available as a hosted service (free for non-commercial use) or self-hosted app. It aims to offer easy to use and meaningful privacy-friendly web analytics as an alternative to Google Analytics or Matomo. Free tier is for non-commerical use and includes unlimited number of sites, 6 months of data retention, and 100k pageviews/month.
  • Google Analytics — Google Analytics
  • Expensify — Expense reporting, free personal reporting approval workflow
  • getinsights.io - Privacy-focused, cookie free analytics, free for up to 5k events/month.
  • heap.io — Automatically captures every user action in iOS or web apps. Free for up to 5,000 visits/month
  • Hotjar — Website Analytics and Reports . Free Plan allows 2000 pageviews/day. 100 snapshots/day (max capacity: 300). 3 snapshot heatmaps which can be stored for 365 days. Unlimited Team Members.
  • Keen — Custom Analytics for data collection, analysis and visualization. 1,000 events/month free
  • Yandex.Metrica — Unlimited free analytics
  • Mixpanel — 100,000 monthly tracked users, unlimited data history and seats, US or EU data residency
  • Moesif — API analytics for REST and GraphQL. (Free up to 500,000 API calls/mo)
  • optimizely.com — A/B Testing solution, free starter plan, 1 website, 1 iOS and 1 Android app
  • Microsoft PowerBI — Business Insights & Analytics by Microsoft. Free Plan offers limited use with 1 Million User licenses.
  • quantcast.com — Unlimited free analytics
  • Row Zero - Blazingly fast, connected spreadsheet. Connect directly to data databases, S3, and APIs. Import, analyze, graph, and share millions of rows instantly. 3 free (forever) workbooks.
  • sematext.com — Free for up to 50 K actions/month, 1-day data retention, unlimited dashboards, users, etc.
  • Similar Web — Analytics for Web & Mobile Apps. Free Plan offers 5 results per metric, 1 month of mobile app data & 3 months of website data.
  • StatCounter — Website Viewer Analytics. Free plan for analytics of 500 most recent visitors.
  • Tableau Developer Program — Innovate, create, and make Tableau work perfectly for your organization. Free developer program gives a personal development sandbox license for Tableau Online. The version is the latest pre-release version so Data Devs can test each & every feature of this superb platform.
  • usabilityhub.com — Test designs and mockups on real people, track visitors. Free for one user, unlimited tests
  • woopra.com — Free user analytics platform for 500K actions, 90 day data retention, 30+ one click integration.
  • counter.dev — Web analytics made simple and therefore privacy friendly. Free or pay what you want by donation.
  • PostHog - Full Product Analytics suite free for up to 1m tracked events per month
  • Uptrace - Distributed Tracing Tool that helps developers pinpoint failures and find performance bottlenecks. Has a free plan, offers a free Personal subscription for open source projects, and has an open source version.
  • Microsoft Clarity - Clarity is a free, easy-to-use tool that captures how real people actually use your site.
  • Beampipe.io - Beampipe is simple, privacy-focussed web analytics. free for up to 5 domains & 10k monthly page views.
  • Aptabase — Open Source, Privacy-Friendly and Simple Analytics for Mobile and Desktop Apps. SDKs for Swift, Kotlin, React Native, Flutter, Electron and many others. Free for up to 20.000 events per month.

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Visitor Session Recording

  • Visualime.com — Free and unlimited session recordings, no traffic limits
  • Reactflow.com — Per site: 1,000 pages views/day, 3 heatmaps, 3 widgets, free bug tracking
  • OpenReplay.com - Open-source session replay with devtools for bug reproduction, live session for real-time support, and product analytics suite. 1,000 sessions/month with access to all features and 7-day retention.
  • LogRocket.com - 1,000 sessions/month with 30 day retention, error tracking, live mode
  • FullStory.com — 1,000 sessions/month with 1 month data retention and 3 user seats. More information here.
  • hotjar.com — Per site: 1,050 pages views/month, unlimited heatmaps, data stored for 3 months,...
  • inspectlet.com — 2,500 sessions/month free for 1 website
  • Microsoft Clarity - Session recording completely free with "no traffic limits", no project limits, and no sampling
  • mouseflow.com — 500 sessions/month free for 1 website
  • mousestats.com — 100 sessions/month free for 1 website
  • smartlook.com — free packages for web and mobile apps (1500 sessions/month), 3 heatmaps, 1 funnel, 1-month data history
  • usersurge.com — 250K sessions per month for individuals.
  • howuku.com — Track user interaction, engagement, and event. Free for up to 5,000 visits/month
  • UXtweak.com — Record and watch how visitors use your web site or app. Free unlimited time for small projects

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International Mobile Number Verification API and SDK

  • Cognalys — Freemium mobile number verification through an innovative and reliable method than using SMS gateway. Free 10 tries and 15 verifications/day
  • numverify — Global phone number validation and lookup JSON API. 250 API requests/month
  • veriphone — Global phone number verification in a free, fast, reliable JSON API. 1000 requests/month

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Payment and Billing Integration

  • Adapty.io – One-stop solution with open-source SDK for mobile in-app subscriptions integration to iOS, Android, React Native, Flutter, Unity, or web app. Free up to $10k monthly revenue.
  • CoinMarketCap — Provides cryptocurrency market data including latest crypto and fiat currency exchange rates. Free tier offers 10K call credits/month.
  • CurrencyFreaks — Provides current and historical currency exchange rates. Free DEVELOPER plan available with 1000 requests/month.
  • CoinGecko — Provides cryptocurrency market data including latest crypto exchange rates and historical data. Free tier requires attribution.
  • CurrencyApi — Live Currency Rates for Physical and Crypto currencies, delivered in JSON and XML. Free tier offers 1,250 API requests/month.
  • currencylayer — Reliable Exchange Rates and Currency Conversion for your Business, 1,000 API requests/month free
  • currencystack.io — Production-ready real-time exchange rates for 154 currencies.
  • exchangerate-api.com - An easy to use currency conversion JSON API. Free tier with no request limit.
  • FraudLabsPRO — Help merchants to prevent payment fraud and chargebacks. Free Micro Plan available with 500 queries/month.
  • MailPopin - Get the most of your Stripe notifications with contextualized information.
  • Moesif API Monetization - Generate revenue from APIs via usage-based billing. Connect to Stripe, Chargebee, etc. Free tier offers 30,000 events/month.
  • Nami ML - Complete platform for in-app purchases and subscriptions on iOS and Android, including no-code paywalls, CRM, and analytics. Free for all base features to run an IAP business.
  • RevenueCat — Hosted backend for in-app purchases and subscriptions (iOS and Android). Free up to $10k/mo in tracked revenue.
  • vatlayer — Instant VAT number validation and EU VAT rates API, free 100 API requests/month
  • Freecurrencyapi.net — Free currency conversion and exchange rate data API. 10 requests/hour without an API key, 50 000 requests per month when you register for free.

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Docker Related

  • canister.io — 20 free private repositories for developers, 30 free private repositories for teams to build and store Docker images
  • Container Registry Service - Harbor based Container Management Solution. Free tier offers 1 GB storage for private repositories.
  • Docker Hub — One free private repository and unlimited public repositories to build and store Docker images
  • Play with Docker — A simple, interactive and fun playground to learn Docker.
  • quay.io — Build and store container images with unlimited free public repositories
  • Platform9 - Managed Kubernetes plane. Free plan offers management capabilities up to 3 clusters & 20 nodes. Note: you must provide cluster infrastructure by yourself.

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Vagrant Related

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Dev Blogging Sites

  • BearBlog - Minimalist, and Markdown powered blog and website builder.
  • Dev.to - Where programmers share ideas and help each other grow.
  • Hashnode — Hassle-free Blogging Software for Developers!.
  • Medium — Get smarter about what matters to you.
  • AyeDot — Share your ideas, knowledge and stories with the world for Free, in form of Modern multimedia short-format Miniblogs.

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Commenting Platforms

  • GraphComment - GraphComment is a comments platform that helps you build an active community from website’s audience.
  • Utterances - A lightweight comments widget built on GitHub issues. Use GitHub issues for blog comments, wiki pages and more!
  • Disqus - Disqus is a networked community platform used by hundreds of thousands of sites all over the web.
  • Remarkbox - Open source hosted comments platform ,pay what you can for "One moderator on a few domains with complete control over behavior & appearance"
  • IntenseDebate - A feature-rich comment system for WordPress, Tumblr, Blogger and many other website platforms.

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Screenshot APIs

  • ApiFlash — A screenshot API based on Aws Lambda and Chrome. Handles full page, capture timing, viewport dimensions, ...
  • microlink.io – It turns any website into data such as metatags normalization, beauty link previews, scraping capabilities or screenshots as a service. 250 reqs/day every day free.
  • ScreenshotAPI.net - Screenshot API use one simple API call to generate screenshots of any website. Build to scale and hosted on Google Cloud. Offers 100 free screenshots per month.
  • screenshotlayer.com — Capture highly customizable snapshots of any website. Free 100 snapshots/month
  • screenshotmachine.com — Capture 100 snapshots/month, png, gif and jpg, including full-length captures, not only home page
  • PhantomJsCloud — Browser automation and page rendering. Free Tier offers up to 500 pages/day. Free Tier since 2017.
  • Webshrinker.com — Web Shrinker provides web site screenshot and domain intelligence API services. Free 100 requests/month.
  • Httpic.com — Turn any website into jpg, png or pdf. Capture full page screenshots, adjust viewport, inject custom code. Free tier at 150 images / month.
  • Screenshots — Your API for Screenshots. With highly customizable options for capture. Free 100 screenshots/month.

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Flutter Related and Building IOS Apps without Mac

  • FlutLab - FlutLab is a modern Flutter online IDE and the best place to create, debug, and build cross-platform projects. Build iOS (Without Mac) and Android apps with Flutter.
  • CodeMagic - Codemagic is a fully hosted and managed CI/CD for mobile apps. You can build, test, deploy with a GUI based CI/CD tool. Free tier offers 500 free minutes/month, and Mac Mini instance with 2.3Ghz and 8gb of RAM.
  • FlutterFlow - FlutterFlow is a browser-based drag-and-drop interface to build mobile app using flutter.

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Browser based hardware emulation written in Javascript

  • JsLinux — a really fast x86 virtual machine capable of running Linux and Windows 2k.
  • Jor1k — a OpenRISC virtual machine capable of running Linux with network support.
  • v86 — a x86 virtual machine capable of running Linux and other OS directly into the browser.

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Privacy Management

  • Bearer - Helps implement privacy by design via audits and continuous workflows so that organizations comply with GDPR and other regulations. Free tier is limited to smaller teams and SaaS version only.
  • Osano - Consent management and compliance platform with everything from GDPR representation to cookie banners. Free tier offers basic features.
  • Iubenda - Privacy and cookie policies along with consent management. Free tier offers limited privacy and cookie policy as well as cookie banners.
  • Cookiefirst - Cookie banners, auditing, and multi-language consent management solution. Free tier offers a one-time scan and a single banner.
  • Ketch - Consent management and privacy framework tool. Free tier offers most features with a limited visitor count.

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Miscellaneous

  • BinShare.net - Create & share code or binaries. Avaliable to share as an beautiful image e.g. for Twitter / Facebook post or as a link e.g for chats or forums.
  • Blynk — A SaaS with API to control, build & evaluate IoT devices. Free Developer Plan with 5 devices,Free Cloud & data storage. Mobile Apps also available.
  • Bricks Note Calculator - a note-taking app (PWA) with a powerful built-in multiline calculator.
  • Carbon.now.sh - create and share code snippet in an aesthetic screenshot-like image format. Usually used to aesthetically share/show-off code snippet on Twitter or blog posts.
  • Code Time - an extension for time-tracking and coding metrics in VS Code, Atom, IntelliJ, Sublime Text, and more.
  • Codepng - Create awesome snapshots from your source code that you can share on social media.
  • CodeToImage - Create screenshots of code or text to share on social media.
  • Cronhooks - Schedule on time or recurring webhooks. Free plan allows 5 ad-hoc schedules.
  • cron-job.org - Online cronjobs service. Unlimited jobs free of charge.
  • datelist.io - Online booking / appointment scheduling system. Free up to 5 bookings per month, includes 1 calendar
  • docsapp.io — Easiest way to publish documentation, free for Open Source
  • Domain Forward - One simple tool to forward any URL or Domain. Free up to 5 domains and 200k requests per month.
  • Elementor — WordPress website builder. Free plan available with 40+ Basic Widgets.
  • Form2Channel — Place a static html form on your website and receive submissions directly to Google Sheets, Email, Slack, Telegram or Http. No coding necessary.
  • Format Express - Instant online formatter for JSON / XML / SQL.
  • FOSSA - Scalable, end-to-end management for third-party code, license compliance and vulnerabilities.
  • fullcontact.com — Help your users know more about their contacts by adding social profile into your app. 500 free Person API matches/month
  • Hook Relay - Add webhook support to your app without the hassles: done-for-you queueing, retries with backoff, and logging. The free plan has 100 deliveries per day, 14-day retention, and 3 hook endpoints.
  • http2.pro — HTTP/2 protocol readiness test and client HTTP/2 support detection API.
  • kandi — Jumpstart Application Development: build custom functions, use cases and complete application faster through code snippet and open source library reuse.
  • Base64 decoder/encoder — Online free tool for decoding & encoding data.
  • newreleases.io - Receive notifications on email, Slack, Telegram, Discord and custom webhooks for new releases from GitHub, GitLab, Bitbucket, Python PyPI, Java Maven, Node.js NPM, Node.js Yarn, Ruby Gems, PHP Packagist, .NET NuGet, Rust Cargo and Docker Hub.
  • OnlineExifViewer — View EXIF data online instantly for a photo including GPS location and metadata.
  • PDFMonkey — Manage PDF templates in a dashboard, call the API with dynamic data, download your PDF. Offers 300 free documents per month.
  • Pika Code Screenshots — Create beautiful, customizable screenshots from code snippets and VSCode using extension.
  • QuickType.io - Quickly auto generate models/class/type/interface and serializers from JSON, schema, and GraphQL for working with data quickly & safely in any programming language. Convert JSON into gorgeous, typesafe code in any language.
  • RandomKeygen - A free mobile-friendly tool offers a variety of randomly generated keys and passwords you can use to secure any application, service or device.
  • ray.so - Create beautiful images of your code snippets.
  • readme.com — Beautiful documentation made easy, free for Open Source.
  • redirection.io — SaaS tool for managing HTTP redirections for businesses, marketing and SEO.
  • redirect.pizza - Easily manage redirects with HTTPS support. Free plan includes 10 sources and 100.000 hits per month.
  • ReqBin — Post HTTP Requests Online. Popular Request Methods include GET, POST, PUT, DELETE, and HEAD. Supports Headers and Token Authentication. Includes a basic login system for saving your requests.
  • Smartcar API - An API for cars to locate, get fuel tank, battery levels, odometer, unlock/lock doors, etc.
  • snappify - Enables developers to create stunning visuals. From beautiful code snippets to fully fletched technical presentations. The free plan includes up to 3 snaps at once with unlimited downloads and 5 AI-powered code explanations per month.
  • Sunrise and Sunset - Get sunrise and sunset times for a given longitude and latitude.
  • superfeedr.com — Real-time PubSubHubbub compliant feeds, export, analytics. Free with less customization
  • SurveyMonkey.com — Create online surveys. Analyze the results online. Free plan allows only 10 questions and 100 responses per survey.
  • Tiledesk - Create chatbots and conversational apps. Bring them omnichannel: from your website (live chat widget) to WhatsApp. Free plan with unlimited chatbots.
  • Versionfeeds — Custom RSS feeds for releases of your favorite software. Have the latest versions of your programming languages, libraries or loved tools in one feed. (First 3 feeds are free)
  • videoinu — Create and edit screen recordings and other videos online.

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Remote Desktop Tools

  • Getscreen.me — Free for 2 devices, no limits on the number and duration of sessions
  • Apache Guacamole™ — Open source clientless remote desktop gateway
  • RemSupp — On-demand support and permanent access to devices (2 sessions/day for free)
  • RustDesk - Open source virtual / remote desktop infrastructure for everyone!

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Game Development

  • itch.io — Free/Paid assets like sprites, tile sets, character packs, ...
  • Gamefresco.com — Discover, collect and share free game assets from game artists everywhere.
  • GameDevMarket — Free/Paid assets like 2D, 3D, Audio, GUI.
  • OpenGameArt — OpenSource Game Assets like music, sounds, sprites, gifs, ...
  • CraftPix — Free/Paid assets like 2D, 3D, Audio, GUI, backgrounds, icons, tile sets, game kits.
  • Game Icons - Free styleable SVG/PNG icons provided under CC-BY license.
  • LoSpec — Online tools for creating pixel art and other restrictive digital art, lots of tutorials/pallet list available to choose for your games
  • ArtStation - MarketPlace for Free/Paid 2D, 3D assets & audios, icons, tile sets, game kits,..., Also, It can be used for showcasing your art portfolio.
  • Rive - Community assets as well as create your own game assets using its free plan.
  • Poly Pizza - Free low poly 3D assets
  • 3Dassets.one - Over 8,000 free/paid 3D models, and PBR materials for making textures.
  • 3DModelsCC0 - Library of public domain 3D models made for game development.
  • Kenney - Free (CC0 1.0 Universal licensed) 2D, 3D, Audio, and UI game assets.
  • Poliigon - Free and paid textures (with variable resolution), models, HDRIs, and brushes. Offers free plugins to export to software like Blender.

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Other Free Resources

  • Buff.tools - An all-in-one digital toolbox featuring Web, SEO, AI, Domain Management, unit conversion, calculators, and Image Manipulation Tools.
  • ElevateAI - Get up to 200 hours of audio transcription for free every month.
  • get.localhost.direct — A better *.localhost.direct Wildcard public CA signed SSL cert for localhost development with sub-domain support
  • Framacloud — A list of Free/Libre Open Source Software and SaaS by the French non-profit Framasoft.
  • github.com — FOSS for Dev — A hub of free and Open Source software for developers.
  • GitHub Education — Collection of free services for students. Registration required.
  • Microsoft 365 Developer Program — Get a free sandbox, tools, and other resources you need to build solutions for the Microsoft 365 platform. The subscription is a 90-day Microsoft 365 E5 Subscription (Windows excluded) which is renewable. It is renewed if you're active in development(measured using telemetry data & algorithms).
  • RedHat for Developers — Free access to Red Hat products including RHEL,OpenShift,CodeReady etc exclusively for developers. Individual plan only. Free e-Books also offered for reference.
  • smsreceivefree.com — Provides free temporary and disposable phone numbers.
  • sandbox.httpsms.com — Send and receive test SMS messages for free.
  • simplebackups.io — Backup automation service for servers and databases (MySQL, PostgreSQL, MongoDB) stored directly into cloud storage providers (AWS, DigitalOcean, Backblaze...). Provides free plan for 1 backup.
  • SnapShooter — Backup solution for DigitalOcean, AWS, LightSail, Hetzner and Exoscale, with support for direct database, file system and application backups to s3 based storage. Provides a free plan with daily backups for one resource.
  • Themeselection — Selected high quality, modern design, professional and easy-to-use Free Admin Dashboard Template,

HTML Themes and UI Kits to create your applications faster!

  • Web.Dev — This is a free tool that allows you to see the performance of your website and improve the SEO to get higher rank list in search engines.
  • SmallDev.tools — A free tool for developers that allows you to Encode/Decode various formats, Minify HTML/CSS/Javascript, Beautify, Generate Fake/Testing real like dataset in JSON/CSV & multiple other formats and many more features. With a delightful interface.
  • UseCSV by Layercode — Add CSV and Excel import to your web app in minutes. Give your users an enjoyable and robust data import experience. Get Started for Free without any credit card details, and start integrating UseCSV today. You can create unlimited Importers and upload files up to 100Mb.
  • Buttons Generator — 100+ buttons you can use in your project.
  • WrapPixel — Download High Quality Free and Premium Admin dashboard template created with Angular, React, VueJs, NextJs and NuxtJs!
  • Utils.fun — All offline daily and development tools based on the browser's computing power, including watermark generation, screen recording, encoding and decoding, encryption and decryption and code formatting, are completely free and do not upload any data to the cloud for processing.
  • Free Code Tools — Effective code tools which are 100% free. Markdown editor, Code minifier/beautifier, QR code generator, Open Graph Generator, Twitter card Generator and more.
  • regex101 — Free this website allows you to test and debug regular expressions (regex). It provides a regex editor and tester, as well as helpful documentation and resources for learning regex.
  • Kody Tools — 100+ dev tools including formatter, minifier, and converter.
  • AdminMart — High Quality Free and Premium Admin Dashboard and Website Templates created with Angular, Bootstrap, React, VueJs, NextJs and NuxtJs!
  • Glob tester — A website that allows you to design and test glob patterns. It also provides resources to learn glob patterns.
  • OpenUtils - There are various free tools available for developers, such as HTML/CSS/JavaScript formatters, minifiers, converter, encoder/decoder and many others.

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