Open source continuous-integration projects

Every project in the registry tagged continuous-integration, ranked by real GitHub adoption.

projects 10 combined stars ★ 116K refresh nightly
01 Harness ★ 38K

End-to-end open source software delivery platform

last push35 hours ago languageGo licenseApache-2.0
02 jenkins ★ 27K

Jenkins automation server

last push5 hours ago languageJava licenseMIT
03 dagger ★ 16K

Automation engine to build, test and ship any codebase. Runs locally, in CI, or directly in the cloud

last push4 hours ago languageGo licenseApache-2.0
04 origin ★ 8.7K

Conformance test suite for OpenShift

last push9 hours ago languageGo licenseApache-2.0
05 gocd ★ 7.4K

GoCD - Continuous Delivery server main repository

last push18 hours ago languageJava licenseApache-2.0
06 Flagsmith ★ 6.6K

Feature flags and remote config for rapid deployment

last push10 hours ago languagePython licenseBSD-3-Clause
07 werf ★ 4.7K

A solution for implementing efficient and consistent software delivery to Kubernetes facilitating best practices.

last push10 hours ago languageGo licenseApache-2.0
08 cake ★ 4.2K

:cake: Cake (C# Make) is a cross platform build automation system.

last pushyesterday languageC# licenseMIT
09 agola ★ 1.6K

Agola: CI/CD Redefined

last push12 months ago languageGo licenseApache-2.0
10 Semaphore ★ 1.6K

Open source CI/CD platform that's faster and costs less

last push5 hours ago languageElixir license

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Frequently asked questions

How many open source continuous-integration projects are there?

This registry tracks 10 projects tagged continuous-integration, with 116,008 GitHub stars between them. The most-adopted is Harness at 38,378 stars.

Are these continuous-integration projects free to use?

Yes — 9 of the 10 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which continuous-integration project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these continuous-integration projects still maintained?

9 of the 10 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.