Jenkins
The leading open source automation server that enables developers to reliably build, test, and deploy software through extensible plugins and distributed workflows.
Jenkins is an open-source alternative to:

Jenkins
Jenkins is the leading open source automation server designed to facilitate continuous integration and continuous delivery (CI/CD) workflows. It provides hundreds of plugins to support building, deploying, and automating any project, making it a versatile solution for development teams of all sizes.
Key Features
- Extensible Plugin Ecosystem: Access hundreds of plugins in the Update Center to integrate with virtually any tool in the CI/CD toolchain.
- Cross-Platform Compatibility: Runs as a self-contained Java-based program on Windows, Linux, macOS, and other Unix-like systems.
- Easy Configuration: Set up and manage Jenkins via an intuitive web interface with built-in error checks and help documentation.
- Distributed Builds: Distribute work across multiple machines to accelerate builds, tests, and deployments across diverse platforms.
- Pipeline as Code: Define complex workflows using Jenkins Pipeline for reproducible and version-controlled automation.
- Community-Driven: Backed by a global community with extensive documentation, tutorials, and support resources.
- Security & Compliance: Regular security advisories and robust access control mechanisms to protect your automation environment.
- Scalability: Suitable for projects of any scale, from small teams to large enterprises.
Tech / Self-Hosting
Jenkins is open source and can be self-hosted on any infrastructure supporting Java. It offers Helm charts for Kubernetes deployments, making it easy to integrate into modern cloud-native environments. The project is actively maintained with frequent updates and a strong focus on security and performance.