A directory of services available free to open-source projects.

Search and filter the list at foss.patrickob.tech.

Last reviewed: 2026-09-27. Offers change often, so always check the provider's own terms.

This file is generated from data/services.json. Edit that file, then run node scripts/build-readme.mjs.

Contents

• Version Control
• Project Hosting
• Public Cloud
• Documentation
• Continuous Integration
• Browser & Visual Testing
• Monitoring
• Code Quality & Security
• Localization
• Profiling
• Email
• IDEs & Tools
• Project Management
• Chat & Support
• SSL & CDN
• Design & Media
• Funding
• Utilities & Services
• No longer free or discontinued

Version Control

• Bitbucket - Git hosting, free for up to 5 users; community licences for open source projects.
• Codeberg - Free as in freedom Git hosting for open source, run by a nonprofit association. Includes Codeberg Pages.
• GitHub - Free public and private repositories.
• GitLab - Free repositories and CI/CD. The GitLab for Open Source programme gives qualifying projects top-tier features. - request needed

Project Hosting

• NuGet - .NET package hosting.
• PythonAnywhere - Hosting for Python web apps. - has limits
• SourceForge - Git, Mercurial and SVN project hosting with downloads.
• GitHub Pages - Static site hosting straight from a repository.
• Cloudsmith - Package repositories for most formats, with 50 GB storage and 200 GB bandwidth a month for open source. Requires attribution in your README. - has limits

Public Cloud

• DigitalOcean - Yearly cloud credits for open source projects, tiered by project size. - request needed
• OpenShift - Resource grants for open source and non-profit projects. - request needed
• Heroku - Open Source Credit Program: monthly platform credits for 12 months. - request needed
  • Changed: The free dyno tier was removed in November 2022. Open source projects can apply for credits instead.
• Vercel - Hobby tier with static and serverless hosting and a global CDN, plus an open source sponsorship programme. - request needed
• Netlify - Open Source plan with Pro features for qualifying projects. - request needed
• Cloudflare Pages - Static and full-stack hosting on Cloudflare's network, generous free tier.
• AWS Open Source Credits - AWS promotional credits for OSI-licensed projects, typically used for CI, testing and artifact storage. - request needed
• OSU Open Source Lab - Nonprofit hosting for open source projects, including POWER, AArch64 and IBM Z machines. - request needed
• Neon - Serverless Postgres. The open source programme gives up to $5,000 in credit a year. - request needed
• Upstash - Serverless Redis, vector and queues. Open source projects can get up to $1,000 a month in credit. - request needed

Documentation

• GitBook - Documentation platform, free for qualifying open source projects. - request needed
• Read the Docs - Builds, versions and hosts your docs. Free for open source (ad-supported).
• Atlassian Confluence - Team wiki. Free Cloud licence for open source projects. - request needed
• Mintlify - Hosted documentation. Non-commercial open source projects get the Pro plan free. - request needed

Continuous Integration

• GitHub Actions - CI/CD built into GitHub. Free for public repositories on standard runners.
• AppVeyor - CI for Windows, Linux and macOS, free for open source.
• Azure Pipelines - Cloud-hosted pipelines for Linux, macOS and Windows. Free parallel jobs for public projects. - request needed
  • Changed: Since 2021 the free open source grant must be requested with a form.
• Bitrise - CI/CD for mobile apps. Public apps get Developer plan features free.
• CircleCI - CI/CD with a free plan and extra build credits for open source.
• Codecov - Code coverage reporting, free for open source. Now part of Sentry.
• Coveralls - Code coverage history, free for open source.
• DeployHQ - Continuous deployment from Git. DeployBot has merged into DeployHQ. - request needed
• Knapsack Pro - Splits your test suite across parallel CI nodes. - request needed
• Sauce Labs - Cross-browser and mobile testing, free accounts for qualifying open source. - request needed
• Scrutinizer - CI and code analysis for GitHub and Bitbucket, free for open source.
• Semaphore - Hosted CI/CD, free for open source. The platform itself is open source (Apache 2.0) since 2025.
• TeamCity - JetBrains CI server, free under the open source support programme. - request needed - strict rules
• Travis CI - Hosted CI for GitHub. - request needed
  • Changed: travis-ci.org closed in 2021 and unlimited free builds ended. Open source projects can request OSS credits.
• Atlassian Bamboo - Self-hosted CI/CD.
  • Changed: Bamboo is now Data Center only, and Atlassian's open source licences mainly cover Cloud products. Check eligibility before relying on it.
• Buildkite - CI/CD on your own agents, with public pipelines and free accounts for open source. - request needed
• Mergify - Merge queue, CI insights and merge protections for GitHub, free for open source.

Browser & Visual Testing

• BrowserStack - Live and automated browser testing, free for open source. - request needed
• TestingBot - Browser and mobile testing, free for open source. - request needed
• TestMu AI (LambdaTest) - Cross-browser and mobile testing on thousands of browsers and devices, free for open source. Formerly LambdaTest. - request needed
• Chromatic - Visual testing and UI review for Storybook, with a free plan open source projects can use. - has limits
• Argos - Visual regression testing in CI. Sponsored free usage for non-commercial open source. - request needed - strict rules

Monitoring

• BugSnag - Cross-platform error monitoring, free for open source and non-profits. Rebranded by SmartBear as Insight Hub in 2025. - request needed
• Datadog - Monitoring and observability for open source projects. - request needed
• Healthchecks.io - Cron job monitoring with a free hobbyist plan. - has limits
• Hund - Hosted status pages, free for open source (email oss@hund.io). - request needed
• Sentry - Error and performance monitoring. Sponsored plans for open source. - request needed

Code Quality & Security

• GitHub code scanning - CodeQL security analysis, free for public repositories. The successor to LGTM.
• Dependabot - Automatic dependency updates and security alerts on GitHub.
• Renovate - Automated dependency updates for most languages and platforms.
• Codacy - Automated code review for 40+ languages, free for open source.
• Qlty - Code quality and coverage, free for open source. The successor to Code Climate Quality.
• Snyk - Finds and fixes vulnerabilities in dependencies, free for open source.
• SonarQube Cloud - Code quality and security analysis, free for public projects. Formerly SonarCloud.
• CodeRabbit - AI code review on pull requests, with Pro features free on every public repository.
• Coverity Scan - Deep static analysis for C, C++, Java, C# and more, free for open source. - has limits
• OSS-Fuzz - Google's continuous fuzzing service for widely used open source software. - request needed - strict rules
• DeepSource - Static analysis and autofix, free for unlimited open source repositories.
• Socket - Detects malicious and risky dependencies in pull requests, free for open source.
• Semgrep - Static analysis, dependency and secrets scanning. The engine is open source, and the platform is free for up to 10 contributors. - has limits
• GitGuardian - Detects leaked secrets in your repositories, free for public repositories.

Localization

• Crowdin - Localization platform, free for open source. - request needed
• Launchpad - Community translation platform for open source projects.
• Localizely - Translation management, free for open source. - request needed
• POEditor - Translation management, free for open source. - request needed
• Transifex - Localization platform with an open source programme. - request needed
• Translation.io - Localization for Rails and other frameworks. - request needed
• Weblate - Hosted continuous localization, free for libre projects. - request needed
• Tolgee - Open source localization platform with in-context translation. The cloud version is free for open source.

Profiling

• Blackfire - PHP and Python profiler. Free yearly subscriptions for non-commercial open source. - request needed - strict rules
• YourKit - Java and .NET profiler, free licences for open source. - request needed

Email

• Helpmonks - Shared inbox and email management, free for open source projects. - request needed
• EmailOctopus - Free for up to 2,500 subscribers and 10,000 emails a month. - has limits
• Brevo - Free plan with 300 emails a day. Formerly Sendinblue. - has limits
• Mailchimp - Free plan for 250 contacts and 500 sends a month. - has limits
  • Changed: Limits cut several times since 2022, most recently in January 2026 (it was 2,000 subscribers).

IDEs & Tools

• JetBrains IDEs - IntelliJ IDEA, PyCharm, PhpStorm, RubyMine, WebStorm and more, free for core maintainers of qualifying projects. - request needed - strict rules
• Visual Studio Community - Full-featured IDE, free for open source and individual developers.
• VSCodium - Binary releases of VS Code without Microsoft branding or telemetry.
• 1Password - Password manager for teams, free for open source projects. - request needed
• GitHub Copilot - AI pair programmer. Copilot Pro is free for maintainers of popular open source projects. - strict rules

Project Management

• Acunote - Agile project management and Scrum, free for open source. - request needed
• Atlassian Jira - Issue tracking and project management. Free Cloud licence for open source. - request needed
• Taiga - Agile project management, free for public projects.
• Teamwork - Project management with a limited free plan. - has limits
• Trello - Kanban boards with a free plan. - has limits
• YouTrack - Issue tracker, free for small teams and open source. - request needed - strict rules
• ZenHub - Project management inside GitHub, free for public repositories.
• Discourse - Hosted discussion forums for community-friendly open source projects. - request needed
• Convas - Public feedback pages where users suggest and upvote ideas, free for non-commercial open source. - request needed

Chat & Support

• Chatwoot - Open source customer engagement suite, an alternative to Intercom and Zendesk. - request needed
• Zulip - Threaded team chat. Free Cloud Standard for open source projects. - request needed

SSL & CDN

• Cloudflare - Free SSL, CDN, DNS and DDoS protection for everyone. Project Alexandria offers extra help to open source.
• Let's Encrypt - Free, automated and open certificate authority.
• Fastly Fast Forward - Free CDN and edge services for open source projects. - request needed
• jsDelivr - Free, fast CDN for files from npm and GitHub, with no bandwidth limits.

Design & Media

• Canva - Design tool with a free plan.
• Mixkit - Free stock video, music and sound effects, no attribution required.
• Openclipart - Public domain clipart.
• Unsplash - Free photos for any purpose, credit appreciated but not required.
• Fontpair - Helps you pair free, open source Google Fonts.

Funding

• GitHub Sponsors - Let people fund your project, with no fees on personal accounts.
• Open Source Collective - Fiscal hosting that handles donations, expenses and taxes for your project, for a 10% fee. - has limits
• thanks.dev - Companies fund their dependencies automatically. Maintainers sign in to receive donations.

Utilities & Services

• Algolia DocSearch - Hosted search for technical documentation, free for open source docs. - request needed
• Auth0 - Authentication and single sign-on with a free plan and open source sponsorship. - request needed
• Docker Sponsored Open Source - Unlimited pulls and a badge on Docker Hub for qualifying projects. - request needed
• Mailtrap - Email testing sandbox with a free plan. - has limits
• SDKMAN! - Manage parallel versions of JVM SDKs.

No longer free or discontinued

Kept here so you know why they were removed.

• Codeship - CloudBees shut CodeShip down on 31 January 2026.
• LGTM - Shut down in December 2022. Use GitHub code scanning (CodeQL) instead.
• QuantifiedCode - The service has been offline for years.
• SendGrid - The free plan was retired in July 2025. New accounts get a 60-day trial.
• AppCode - JetBrains discontinued AppCode.
• GoDaddy - A 2005-era offer with no current programme. Use Let's Encrypt.
• Razuna - Only a 30-day free trial, not a free offer.
• Apiary - Oracle is shutting Apiary down in September 2026.
• Kong - No current free open source offer could be found.

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