Jenkins
The leading open-source automation server with extensive plugin ecosystem for building, deploying, and automating projects.
Jenkins is the most widely used open-source automation server, providing hundreds of plugins to support building, deploying, and automating any project. As a self-hosted solution, it offers complete control over the CI/CD pipeline infrastructure. Its plugin ecosystem is unparalleled, with integrations for virtually every tool in the DevOps landscape. Jenkins supports Pipeline as Code through Jenkinsfile, distributed builds with master/agent architecture, and extensive API access.
Features
Cache Management
Built-in caching mechanisms to speed up builds
Requires plugins or manual setup
Deployment Gate Approvals
Manual approval steps before production deployments
Input step, pipeline approvals via plugins
Docker/Kubernetes Support
Native support for building and deploying containerized applications
Via plugins, Docker Pipeline plugin
Hosted Runners
Managed build infrastructure provided by the platform
Self-hosted only, no managed runners
Marketplace/Plugins
Extensible ecosystem of pre-built integrations and plugins
1800+ plugins in Update Center
Matrix Builds
Run tests across multiple OS and language versions in parallel
Limited, requires Matrix Project Plugin
Parallel Execution
Run multiple jobs simultaneously to reduce build times
Parallel stages in declarative pipeline
Pipeline as Code
Define CI/CD pipelines through code files in the repository
Jenkinsfile declarative and scripted pipeline
Secrets Management
Secure storage and injection of API keys and credentials
Credentials binding plugin, built-in encryption
Self-Hosted Runners
Ability to run build agents on your own infrastructure
Master/agent architecture