Jenkins Overview
Jenkins is a free, open-source automation server widely used for continuous integration and continuous delivery (CI/CD). It automates building, testing, and deploying software by running jobs and pipelines triggered by code changes, schedules, or other events, helping teams catch problems early and ship more reliably. Pipelines can be defined as code in a Jenkinsfile, and a very large plugin ecosystem integrates Jenkins with version control, build tools, test frameworks, container platforms, and cloud providers. It runs on a server (often as a long-running service) and distributes work across agents. The offline installer/package installs without a network connection, though plugins are fetched separately. Modern pipeline-visualization plugins improve readability of multi-stage builds, and credentials and secrets are managed centrally. Use the link on this page to reach CloudBees,'s official Jenkins download.