Jenkins, the most popular open-source automation server, provides hundreds of plugins that can be used to build, deploy, and automate any project. Jenkins is an extensible automation server that can be used to create CI servers or become the continuous delivery hub for any project. Jenkins is a Java-based program that can be run straight out of the box. It includes packages for Windows, Linux and macOS, as well as other Unix-like operating system packages. Jenkins is easy to set up and configure via its web interface. It also includes built-in help and on-the-fly error checking. Jenkins can be integrated with almost every tool in the Continuous Integration and Continuous Delivery toolchain thanks to the hundreds of plugins available in the Update Center. Jenkins' plugin architecture allows for almost unlimited possibilities. Jenkins makes it easy to distribute work across multiple machines. This helps drive builds, tests, and deployments across multiple platforms more quickly.