Open source continuous-integration projects

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

projects 17 combined stars ★ 138K refresh nightly
01 Harness ★ 39K

End-to-end open source software delivery platform

last push12 hours ago languageGo licenseApache-2.0
02 jenkins ★ 27K

Jenkins automation server

last push16 hours ago languageJava licenseMIT
03 dagger ★ 17K

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

last push10 hours ago languageGo licenseApache-2.0
04 origin ★ 8.7K

Conformance test suite for OpenShift

last push12 hours ago languageGo licenseApache-2.0
05 gocd ★ 7.4K

GoCD - Continuous Delivery server main repository

last push23 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 cds ★ 4.8K

Enterprise-Grade Continuous Delivery & DevOps Automation Open Source Platform

last push17 hours ago languageGo licenseBSD-3-Clause
08 werf ★ 4.7K

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

last push18 hours ago languageGo licenseApache-2.0
09 jx ★ 4.7K

Jenkins X provides automated CI+CD for Kubernetes with Preview Environments on Pull Requests using Cloud Native pipelines from Tekton

last push18 hours ago languageGo licenseApache-2.0
10 tbls ★ 4.4K

tbls is a CI-Friendly tool to document a database, written in Go.

last push2 days ago languageGo licenseMIT
11 cake ★ 4.2K

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

last push3 days ago languageC# licenseMIT
12 nuke ★ 3.8K

🏗 The AKEless Build System for C#/.NET

last push11 months ago languageC# licenseMIT
13 toast ★ 1.6K

Containerize your development and continuous integration environments. 🥂

last push2 days ago languageRust licenseMIT
14 Semaphore ★ 1.6K

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

last push14 hours ago languageElixir license—
15 agola ★ 1.6K

Agola: CI/CD Redefined

last push13 months ago languageGo licenseApache-2.0
16 FlubuCore ★ 937

A cross platform build and deployment automation system for building projects and executing deployment scripts using C# code.

last push7 months ago languageC# licenseMIT
17 puppetry ★ 888

Web testing solution for non-developers on top of Puppeteer and Jest

last push5 months ago languageJavaScript licenseMIT

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Frequently asked questions

How many open source continuous-integration projects are there?

This registry tracks 17 projects tagged continuous-integration, with 138,178 GitHub stars between them. The most-adopted is Harness at 38,798 stars.

Are these continuous-integration projects free to use?

Yes — 16 of the 17 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?

13 of the 17 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.