A curated list of awesome companies that offer their tools and services for free to Open Source and public projects.
Note: While there are many companies that have great free tiers (Slack, for example), this list focuses specifically on organizations that have made an overt commitment to the Open Source community through additional offerings.
- Code Coverage
- Code Quality
- Continuous Integration
- Dependency Management
- Package Management
- Project Management
- Monitoring
- Localization
- Version Control
- Miscellaneous
- Better Code Hub - Source code maintainability analysis.
- Codacy - Automated code reviews & analytics.
- Code Climate - Automated code review & health analysis.
- codebeat - Automated code review for mobile and web.
- CodeFactor - Automated static analysis for C#, Java, CSS, JS, Ruby, Go and Python source code.
- Hound - Source code style review.
- lgtm - Automated code reviews for developers.
- PullApprove - Approve GitHub pull request through code review.
- Reviewable - Automated GitHub code reviews.
- Scrutinizer - Continuous code quality analysis.
- SonarCloud - Continuous code inspection.
- StyleCI - PHP code style review.
- AppVeyor - CI/CD for Windows developers.
- Bitrise - Hosted CI/CD for Android and iOS, free for Public Projects.
- CircleCI - Docker-based building with support of customized workflows.
- Codefresh - Docker-native CI/CD.
- Codeship - Continuous integration, delivery, and deployment.
- DeployHQ
requires-approval
- Deployment automation. - Sauce Labs - Cross-browser testing, Selenium testing, and mobile testing.
- Semaphore - Fast automated CI/CD.
- Travis-CI - Automated CI/CD for Open Source.
- Dependabot - Automated dependency updates for Ruby, Python, JavaScript and PHP.
- Greenkeeper - Automated dependency management for NPM packages (on GitHub).
- pyup.io - Python dependency management.
- Snyk - Continuous dependency vulnerability assessment.
- Tachikoma.io - Dependency update as a service.
- GitBook - Collaborative application documentation.
- Read the Docs - Documentation hosting platform.
- BugSnag
requires-approval
- Exception tracking and reporting. - Honeybadger
requires-approval
non-commercial
- Exception and uptime monitoring for Ruby.
- MyGet
requires-approval
- NuGet, npm, Bower, Maven, and Vsix package hosting. - packagecloud
requires-approval
- Maven, RPM, DEB, PyPi, and RubyGem hosting.
- Taiga.io - Project management for agile developers.
- ZenHub - Agile GitHub project management.
- Zube - Project management for GitHub issues.
- Check my Website
requires-approval
- Automated website monitoring. - Healthchecks.io
requires-approval
- Cron job monitoring. - WebGazer
requires-approval
- Uptime and cron job monitoring with hosted status pages.
- Crowdin
requires-approval
- Localization management platform. - LingoHub
requires-approval
- Translation management. - Locale - Localization and Translation.
- Lokalise
requires-approval
- Localization and Translation Software Tool. - POEditor
requires-approval
- Localization management platform. - Transifex
requires-approval
- Localization platform for translating digital content. - Weblate
requires-approval
- Web-based continuous localization.
- BitBucket - Git and Mercurial repository hosting.
- GitHub - Git project hosting.
- GitLab - Git project hosting.
- Plastic SCM
requires-approval
- Distributed Git project hosting.
- Algolia -
requires-approval
Search as a service API. - Apiary
requires-approval
- API design, development, and documentation platform. - Atlassian
requires-approval
- Productivity tools for teams (Jira, Confluence, Bamboo, HipChat). - Auth0
requires-approval
- SSO & token-based authentication. - BackHub - Automated GitHub repository backups.
- BrowserStack
requires-approval
- Cross-browser testing tool. - Cloud9 - Cloud-based development environments.
- Codota - AI pair programming assistant.
- Firezone
requires-approval
- Self-hosted remote access built on WireGuard. - GlobalSign
requires-approval
- SSL certificates for open source projects. - Helpmonks
requires-approval
- Collaborative team email inboxes. - JetBrains
requires-approval
non-commercial
- Software vendor specializing in the creation of intelligent development tools. - Libraries.io - Open source discovery service.
- LoginRadius
requires-approval
- Authentication and SSO Made Simple. - Mailman 3
requires-approval
- Mailing lists for distributed teams. - Mailtrap
requires-approval
- Fake SMTP testing server. - Netlify
requires-approval
- Hosting for static sites. - Sourcegraph - Smart source code transparency.
- Siteleaf - CMS for static sites.
- testmail.app
requires-approval
- Automate end-to-end email tests with unlimited mailboxes and a GraphQL API. - Transloadit
requires-approval
- API for file uploading & encoding. - Zulip
requires-approval
- Chat for distributed teams.
Please see the contributor guidelines and code of conduct for details.
While many companies use the public repositories feature of GitHub, Bitbucket, and GitLab to determine the Open Source status of a project, there are others who require more verification. These companies have been marked with a requires-approval
tag, indicating that an application process is required to take advantage of their Open Source benefits.
Some companies make their products available for open source, but only for non-commercial projects. These companies have been marked with a non-commercial
tag.