Open source ci projects

Every project in the registry tagged ci, ranked by real GitHub adoption.

projects 21 combined stars ★ 165K refresh nightly
01 Harness ★ 39K

End-to-end open source software delivery platform

last push8 hours ago languageGo licenseApache-2.0
02 promptfoo ★ 27K

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simpl

last push6 hours ago languageTypeScript licenseMIT
03 webhook ★ 12K

webhook is a lightweight incoming webhook server to run shell commands

last push2 months ago languageGo licenseMIT
04 earthly ★ 12K

Super simple build framework with fast, repeatable builds and an instantly familiar syntax – like Dockerfile and Makefile had a baby.

last push7 days ago languageGo licenseMPL-2.0
05 spug ★ 11K

Spug is a lightweight agent-free automatic operation and maintenance platform designed for small and medium-sized enterprises. It integrates host management, ho

last push6 days ago languageJavaScript licenseAGPL-3.0
06 reviewdog ★ 9.7K

🐶 Automated code review tool integrated with any code analysis tools regardless of programming language

last push14 hours ago languageGo licenseMIT
07 DevOps-Bash-tools ★ 8.4K

1200+ DevOps Bash Scripts - AWS, GCP, Kubernetes, Docker, CI/CD, APIs, SQL, PostgreSQL, MySQL, Hive, Impala, Kafka, Hadoop, Jenkins, GitHub, GitLab, BitBucket,

last push3 days ago languageShell licenseMIT
08 Woodpecker CI ★ 8.1K

Simple yet powerful CI/CD engine with great extensibility

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

GoCD - Continuous Delivery server main repository

last push20 hours ago languageJava licenseApache-2.0
10 tfsec ★ 7.1K

Tfsec is now part of Trivy

last push7 months ago languageGo licenseMIT
11 Flagsmith ★ 6.6K

Feature flags and remote config for rapid deployment

last push7 hours ago languagePython licenseBSD-3-Clause
12 agent-beacon ★ 3.1K

The cross-harness self-improving memory layer for AI agents.

last push7 hours ago languageGo licenseMIT
13 database-lab-engine ★ 2.8K

DBLab enables 🖖 database branching and ⚡️ thin cloning for any Postgres database and empowers DB testing in CI/CD. This optimizes database-related costs while

last push5 days ago languageGo licenseApache-2.0
14 PhpMetrics ★ 2.6K

Beautiful and understandable static analysis tool for PHP

last push2 months ago languagePHP licenseMIT
15 devops-basics ★ 1.9K

🚀 Practical and document place for DevOps toolchain

last push2 months ago languageShell licenseApache-2.0
16 toast ★ 1.6K

Containerize your development and continuous integration environments. 🥂

last push2 days ago languageRust licenseMIT
17 Semaphore ★ 1.6K

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

last push10 hours ago languageElixir license—
18 pytest-testmon ★ 1.0K

Selects tests affected by changed files. Executes the right tests first. Continuous test runner when used with pytest-watch.

last push13 hours ago languagePython licenseMIT
19 captain ★ 775

Captain - Convert your Git workflow to Docker :whale: containers

last push1 months ago languageGo licenseMIT
20 burrito ★ 766

🌯 Burrito is a TACoS Kubernetes Operator - "Argo CD for Terraform"

last push2 days ago languageGo licenseApache-2.0
21 zeabur ★ 735

A platform that helps you deploy services with one click.

last push2 days ago languageHTML licenseMPL-2.0

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Frequently asked questions

How many open source ci projects are there?

This registry tracks 21 projects tagged ci, with 165,202 GitHub stars between them. The most-adopted is Harness at 38,798 stars.

Are these ci projects free to use?

Yes — 20 of the 21 carry an explicit open-source licence across 5 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 ci 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 ci projects still maintained?

20 of the 21 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.