jd-gui

JD-GUI is a standalone graphical utility designed to decompile Java ".class" files and display their source code. Its primary use case is for developers needing quick access to Java methods and fields from compiled code, featuring an intuitive interface that allows for file browsing, drag-and-drop functionality, and support for extensions. Notable features include support for building deployable packages across different operating systems and ease of use through a simple file opening process.