IntelliJ IDEA Community Edition is the open source version of IntelliJ IDEA, a premier IDE (Integrated Development Environment) for Java, Groovy and other programming languages such as Scala or Clojure. The Community Edition includes: An intelligent code editor that has all the smarts for understanding Java, XML and Groovy code Refactorings, code inspections and intentions, super-fast navigation and search Testing frameworks integration: JUnit and TestNG Build tools support: Ant and Maven Popular version control systems integration: CVS, Subversion and Git Swing UI designer