The “Java Decompiler project” aims to develop tools in order to decompile and analyze Java 5 “byte code” and the later versions.

JD-GUI is a standalone graphical utility that displays Java source codes of “.class” files. You can browse the reconstructed source code with the JD-GUI for instant access to methods and fields.

JD-Eclipse is a plug-in for the Eclipse platform. It allows you to display all the Java sources during your debugging process, even if you do not have them all.

JD-Core is a library that reconstructs Java source code from one or more “.class” files. JD-Core may be used to recover lost source code and explore the source of Java runtime libraries. New features of Java 5, such as annotations, generics or type “enum”, are supported. JD-GUI and JD-Eclipse include JD-Core library.

JD-Core, JD-GUI & JD-Eclipse are open source projects released under the GPLv3 License.

  • JD-Core and JD-GUI are written in Java.
  • JD-Core works with most current compilers including the following:
    • JDK 1.1.8, JDK 1.3.1, JDK 1.4.2, JDK 1.5.0, JDK 1.6.0, JDK 1.7.0, JDK 1.8.0, JDK 9.0.0, JDK 10.0.0
    • jrockit90_150_06
    • jikes-1.22
    • harmony-jdk-r533500
    • Eclipse Java Compiler v_677_R32x, 3.2.1 release
  • JD-GUI supports Drag and Drop.
  • JD-GUI supports CLASS, JAR, WAR, EAR & ZIP files.
  • JD-GUI displays color coded Java source code.
  • JD-GUI allows you to browse the CLASS files hierarchy.
  • JD-GUI displays LOG files, and allow you to decompile CLASS files appearing in Java stack traces.

JD-GUI is a standalone graphical utility that displays Java source codes of “.class” files. You can browse the reconstructed source code with the JD-GUI for instant access to methods and fields.

Release notes - 05/26/2019

  • JD-Core 1.5.1 add the capability to search source code on maven.org and display it instead of decompiled code.
  • It is powered by the new JD-Core 1.0.2, rewrite from scratch, to improve the quality of decompiled source codes and support news features such as lambda expressions.

Releases

Old releases

Issues

Donations

Did JD-GUI help you to solve a critical situation? Do you use JD-Eclipse daily? What about making a donation?

JD-Eclipse is a plug-in for the Eclipse platform. It allows you to display all the Java sources during your debugging process, even if you do not have them all.

Release

Installation

  1. Download and unzip the JD-Eclipse Update Site,
  2. Launch Eclipse,
  3. Click on "Help > Install New Software...",
  4. Click on button "Add..." to add an new repository,
  5. Enter "JD-Eclipse Update Site" and select the local site directory,
  6. Check "Java Decompiler Eclipse Plug-in",
  7. Next, next, next... and restart Eclipse.

Old releases

Issues

Donations

Did JD-GUI help you to solve a critical situation? Do you use JD-Eclipse daily? What about making a donation?