java-decompiler/jd-gui
Jd Gui
This project is a desktop application designed for the reverse engineering and inspection of compiled Java code. It functions as a graphical interface that translates Java bytecode back into readable source code, allowing users to examine the internal logic of class files and archives when original source files are unavailable.
The tool provides a structured environment for navigating complex file hierarchies, including nested archives like JAR and WAR files. By maintaining an in-memory representation of loaded classes, it enables rapid searching and cross-referencing of code elements. The application also supports a modular architecture, allowing for the dynamic loading of external libraries to extend its core functionality.
Beyond basic decompilation, the software facilitates security auditing, legacy system maintenance, and general code review. It provides a visual workspace for inspecting methods, fields, and organizational structures within compiled binaries. The application is distributed as a standalone desktop utility with a standard graphical interface for file navigation and code display.