Convert Minecraft JAR to Readable Java Source Files

Full Decompilation Process

To get actual .java source files instead of just .class files, enable the decompilation step. This takes longer but gives you the most readable output.

Steps

1. Open the Deobfuscation Tool

2. Select Type: client or server depending on what you need

3. Enter the Version (e.g., 1.20.1)

4. Check the box for Decompile

5.

6. Extract the .zip file when complete

You'll find a complete folder structure with .java files ready to read in any text editor or IDE.

Performance Tips

Decompilation is CPU-intensive. Close other applications to speed it up. If you're only studying specific classes, consider deobfuscating without decompilation first, then using a lightweight decompiler on just the .class files you need.