Minecraft Mod Decompiler — View & Edit .class Files in Any Mod JAR

Upload a Forge/Fabric mod JAR, decompile classes online, no setup. Turn compiled .class files into readable Java, then edit values or logic in the browser.

What Is a .class File in a Minecraft Mod?

Step-by-Step: View and Decompile a .class File

Decompile a Whole Minecraft Mod at Once

Limitations of Class File Editing

Minecraft Class File Editor: What to Use

FAQ