JD-GUI Java Decompiler: Features, Limits & Online Alternative

What JD-GUI does, which Java versions it supports, why development stalled in 2019, and how to decompile JAR and .class files online without installing anything.

What is JD-GUI?

Key Features of JD-GUI

Compatibility

Availability

How to Use JD-GUI (Standalone Application)

The JAR Tools Advantage: A Modern Approach

Summary