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Jenkins: the best Open Source alternative to CircleCI in 2026

Jenkins is the most widely used and plugin-extensible CI/CD automation server, for teams who want full control of their pipelines without relying on a SaaS.

License MIT 26.5k stars liveUpdated hoyWebsite GitHub Repository

Technical profile

License: MIT
Category: Dev Tools
Replaces: CircleCI
Tech stack: Java

Preview

Public image provided by Jenkins on its own website.

Key features

Thousands of community plugins
Pipelines as code (Jenkinsfile)
Support for any language or runner

Jenkins vs. CircleCI

Pros

The biggest plugin ecosystem in CI/CD

Things to consider

More manual initial setup than modern SaaS tools

Quick Docker installation guide

Copy this docker-compose.yml, adjust the example passwords and run docker compose up -d on your server. See the full step-by-step guide →

docker-compose.yml

version: "3.9"
services:
  jenkins:
    image: jenkins/jenkins:lts
    restart: unless-stopped
    ports:
      - "8080:8080"
      - "50000:50000"
    volumes:
      - jenkins_data:/var/jenkins_home
volumes:
  jenkins_data: