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visibility: public
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# Open Source Supporters

**repo:** [zachflower/awesome-open-source-supporters](https://github.com/zachflower/awesome-open-source-supporters)  
**category:** [[miscellaneous|Miscellaneous]]

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# Awesome Open Source Supporters [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)

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.**

## Contents

- [Code Coverage](#code-coverage)
- [Code Quality](#code-quality)
- [Continuous Integration](#continuous-integration)
- [Dependency Management](#dependency-management)
- [Package Management](#package-management)
- [Project Management](#project-management)
- [Monitoring](#monitoring)
- [Localization](#localization)
- [Version Control](#version-control)
- [Miscellaneous](#miscellaneous)

## Code Coverage

- [Codecov](https://codecov.io/) - Test coverage monitoring & alerting.
- [Coveralls](https://coveralls.io/) - Test coverage history & statistics.

## Code Quality

- [Better Code Hub](https://bettercodehub.com/) - Source code maintainability analysis.
- [Codacy](https://www.codacy.com/) - Automated code reviews & [analytics](/@harrisonqian/awesome/wiki/miscellaneous/analytics).
- [Code Climate](https://codeclimate.com/) - Automated [code review](/@harrisonqian/awesome/wiki/work/code-review) & health analysis.
- [codebeat](https://codebeat.co/) - Automated [code review](/@harrisonqian/awesome/wiki/work/code-review) for mobile and web.
- [CodeFactor](https://www.codefactor.io/) - Automated static analysis for C#, [Java](/@harrisonqian/awesome/wiki/programming-languages/java), CSS, JS, [Ruby](/@harrisonqian/awesome/wiki/programming-languages/ruby), Go and [Python](/@harrisonqian/awesome/wiki/programming-languages/python) source code.
- [Hound](https://houndci.com/) - Source code style review.
- [lgtm](https://lgtm.com/) - Automated code reviews for developers.
- [PullApprove](https://about.pullapprove.com/) - Approve [GitHub](/@harrisonqian/awesome/wiki/development-environment/github) pull request through [code review](/@harrisonqian/awesome/wiki/work/code-review).
- [Reviewable](https://reviewable.io/) - Automated [GitHub](/@harrisonqian/awesome/wiki/development-environment/github) code reviews.
- [SonarCloud](https://sonarcloud.io/) - Continuous code inspection.
- [StyleCI](https://styleci.io/) - PHP code style review.

## Continuous Integration

- [AppVeyor](https://www.appveyor.com/) - CI/CD for [Windows](/@harrisonqian/awesome/wiki/platforms/windows) developers.
- [Bitrise](https://www.bitrise.io/) - Hosted CI/CD for [Android](/@harrisonqian/awesome/wiki/platforms/android) and iOS, free for Public Projects.
- [CircleCI](https://circleci.com/) - [Docker](/@harrisonqian/awesome/wiki/back-end-development/docker)-based building with support of customized workflows.
- [Codefresh](https://codefresh.io/) - [Docker](/@harrisonqian/awesome/wiki/back-end-development/docker)-native CI/CD.
- [DeployHQ](https://www.deployhq.com/) `requires-approval` - Deployment automation.
- [Sauce Labs](https://saucelabs.com/) - Cross-browser [testing](/@harrisonqian/awesome/wiki/testing/testing), [Selenium](/@harrisonqian/awesome/wiki/testing/selenium) [testing](/@harrisonqian/awesome/wiki/testing/testing), and mobile testing.
- [Semaphore](https://semaphoreci.com/) - Fast automated CI/CD.
- [Travis-CI](https://travis-ci.org/) - Automated CI/CD for Open Source.

## Dependency Management

- [Dependabot](https://dependabot.com/) - Automated dependency updates for [Ruby](/@harrisonqian/awesome/wiki/programming-languages/ruby), [Python](/@harrisonqian/awesome/wiki/programming-languages/python), [JavaScript](/@harrisonqian/awesome/wiki/programming-languages/javascript) and PHP.
- [Greenkeeper](https://greenkeeper.io/) - Automated dependency management for NPM packages (on GitHub).
- [pyup.io](https://pyup.io/) - [Python](/@harrisonqian/awesome/wiki/programming-languages/python) dependency management.
- [Snyk](https://snyk.io/) - Continuous dependency vulnerability assessment.
- [Tachikoma.io](http://tachikoma.io/) - Dependency update as a service.

## Documentation

- [GitBook](https://www.gitbook.com/) - Collaborative application documentation.
- [Read the Docs](https://readthedocs.com/) - Documentation hosting platform.

## Exception Reporting

- [BugSnag](https://www.bugsnag.com/) `requires-approval` - Exception tracking and reporting.
- [Honeybadger](https://www.honeybadger.io) `requires-approval` `non-commercial` - Exception and uptime monitoring for [Ruby](/@harrisonqian/awesome/wiki/programming-languages/ruby).

## Package Management

- [MyGet](https://myget.org/) `requires-approval` - NuGet, npm, Bower, Maven, and Vsix package hosting.
- [packagecloud](https://packagecloud.io/pricing) `requires-approval` - Maven, RPM, DEB, PyPi, and RubyGem hosting.

## Project Management

- [ZenHub](https://www.zenhub.com/) - Agile [GitHub](/@harrisonqian/awesome/wiki/development-environment/github) project management.
- [Zube](https://zube.io/) - Project management for [GitHub](/@harrisonqian/awesome/wiki/development-environment/github) issues.

## Monitoring

- [Healthchecks.io](https://healthchecks.io/) `requires-approval` - Cron job monitoring.
- [WebGazer](https://www.webgazer.io) `requires-approval` - Uptime and cron job monitoring with hosted status pages.

## Localization

- [Crowdin](https://crowdin.com/) `requires-approval` - Localization management platform.
- [LingoHub](https://lingohub.com/) `requires-approval` - Translation management.
- [Lokalise](https://lokalise.com/) `requires-approval` - Localization and Translation Software Tool.
- [POEditor](https://poeditor.com/) `requires-approval` - Localization management platform.
- [Transifex](https://www.transifex.com/) `requires-approval` - Localization platform for translating digital content.
- [Weblate](https://weblate.org/) `requires-approval` - Web-based continuous localization.

## Version Control

- [BitBucket](https://bitbucket.org/) - Git and Mercurial repository hosting.
- [GitHub](https://github.com/) - Git project hosting.
- [GitLab](https://about.gitlab.com/) - Git project hosting.
- [Plastic SCM](https://www.plasticscm.com/) `requires-approval` - Distributed Git project hosting.

## Miscellaneous

- [Algolia](https://www.algolia.com/for-open-source/) - `requires-approval` Search as a service API.
- [Apiary](https://apiary.io/) `requires-approval` - API design, development, and documentation platform.
- [Atlassian](https://www.atlassian.com/software/views/open-source-license-request) `requires-approval` - [Productivity](/@harrisonqian/awesome/wiki/work/productivity) tools for teams (Jira, Confluence, Bamboo, HipChat).
- [Auth0](https://auth0.com/) `requires-approval` - SSO & token-based authentication.
- [BrowserStack](https://www.browserstack.com/) `requires-approval` - Cross-browser [testing](/@harrisonqian/awesome/wiki/testing/testing) tool.
- [Cloud9](https://c9.io/) - Cloud-based development environments.
- [Firezone](https://www.firezone.dev/) `requires-approval` - Self-hosted remote access built on WireGuard.
- [GlobalSign](https://www.globalsign.com/en/ssl/ssl-open-source/) `requires-approval` - SSL [certificates](/@harrisonqian/awesome/wiki/learn/certificates) for open source projects.
- [Helpmonks](https://helpmonks.com/) `requires-approval` - Collaborative team email inboxes.
- [JetBrains](https://www.jetbrains.com/buy/opensource/) `requires-approval` `non-commercial` - Software vendor specializing in the creation of intelligent development tools.
- [Libraries.io](https://libraries.io/) - Open source discovery service.
- [LoginRadius](https://www.loginradius.com/)  `requires-approval`  - Authentication and SSO Made Simple.
- [Mailman 3](https://mailman3.com/) `requires-approval` - Mailing lists for distributed teams.
- [Mailtrap](https://mailtrap.io/) `requires-approval` - Fake SMTP [testing](/@harrisonqian/awesome/wiki/testing/testing) server.
- [Netlify](https://www.netlify.com) `requires-approval` - Hosting for static sites.
- [Sourcegraph](https://sourcegraph.com/) - Smart source code transparency.
- [Siteleaf](https://www.siteleaf.com/) - CMS for static sites.
- [testmail.app](https://testmail.app/) `requires-approval` - Automate end-to-end email tests with unlimited mailboxes and a [GraphQL](/@harrisonqian/awesome/wiki/miscellaneous/graphql) API.
- [Transloadit](https://transloadit.com/) `requires-approval` - API for file uploading & encoding.
- [Zulip](https://zulip.com) `requires-approval` - Chat for distributed teams.

## Contributing

Please see the [contributor guidelines](.github/CONTRIBUTING.md) and [code of conduct](.github/CODE-OF-CONDUCT.md) for details.

## Tags

### `requires-approval`

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.

### `non-commercial`

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.