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Build and test your projects here.

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monthly open source builds on CircleCI

Build on Linux

CircleCI offers 4 Linux containers with no build limits ($2400 annual value) to every open source project in an organization. Simply keeping your repo public will enable this for you.

Start Building on Linux

Build on macOS

If you’re building on macOS, CircleCI also offers 500 build minutes per month (at 1x concurrency) free to open source projects. To get access, contact us at billing@circleci.com.

Get Access to macOS

Enterprise-grade CI/CD features

SSH debugging, industry-leading orchestration capabilities, reusable config, and more. Learn about CircleCI features.

Get started with CI/CD

Read our open source docs to learn about setting up CircleCI for your first OSS project. Read the open source docs.

Read our blog

Check out our top blog articles on using CircleCI with open source projects. Go to blog.


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