Jenkins is an automation tool used for continuous Integration and deployment. It is an open-source Automation Tool written in Java with plugins. Jenkins is used to build and test the software application, so developers can easily change their code to the project and users get fresh builds. Jenkins also allows you to continuously deliver part of software by interchanging with many testing and deployment technologies.
It is a server-based application, so it can be run on various platforms like Windows, Linux, MacOS, Unix, etc. Jenkins provides lots of plugins for various frameworks like Selenium, Cucumber, Appium, etc. Jenkins help developer and DevOps to integrate code easily.
As Jenkins has some limitations or drawbacks it is the most popular choice for CI/CD pipeline due to its configuration, monitoring, extensibility, versatility, and long-standing presence. With a large number of plugins, Jenkins meets all testing automation needs.