Decompile Java Class File

java -jar cfr.jar MyClass.class --outputdir ./decompiled_src

We’ve all been there. You inherit a legacy project with no source code, a critical dependency throws an unexplainable error, or a vendor goes out of business taking their documentation with you. decompile java class file

CFR is my daily driver. It handles modern Java (up to Java 21+), lambda expressions, and even complex features like enum and record elegantly. java -jar cfr

Fernflower is a powerful analytical decompiler. It is actually the engine behind the popular IDE plugin used in IntelliJ IDEA. It focuses on logic and structure, often producing very clean code. often producing very clean code.