DrJava is a lightweight programming environment for Java designed to foster test-driven software development. It includes an intelligent program editor, an interactions pane for evaluating program text, a source level debugger, and a unit testing tool.


  • lightweight IDE
  • interpreter for evaluating programs interactively
  • unit testing
  • source level debugger
  • cross-platform

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BSD License

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User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

User Reviews

  • wont run on won 8.1

  • Won't compile with java 8. It says it compiles, but the console reports an incompatibility with the compiler and no .class file is created. For a new java user that led to a lot of head scratching. Netbeans works with java 8. There's nothing I can find that warns of this incompatibility.

  • Very well job ! Working stable ! Many Thanks !

  • Great GUI for Java; saved me much frustration and still does. FOR OSX El Capitan users, who cannot open it, here's a fix: Find the application's location (it may be in your Downloads folder or Applications; the file is called DrJava.app In terminal, type "xattr -rc \path" where path is the location of the file as you found it. Then everything should work!

  • Excellent tool for teaching and test driven incremental development. I use it to teach my classes.

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Additional Project Details



Intended Audience

Education, Developers, Other Audience

User Interface

Java Swing

Programming Language