Maven is an open-source build automation and project management tool mainly used for Java applications. It automates compiling code, managing dependencies, running tests, and creating build files.
With Maven, developers use a pom.xml file to define project settings and dependencies. Maven then downloads the required libraries and generates packages such as JAR, WAR, or EAR automatically.
In simple words, Maven automates the build process, making it easier to compile, test, package, and manage Java projects.