Fernflower Online — Decompile JAR & Class Files in Your Browser

Want Fernflower online? Fernflower is IntelliJ's built-in decompiler with no standalone web version. Decompile JAR and .class files in your browser — here's how.

Is There a Fernflower Online Version?

Option 1: Decompile a JAR Online (No Install)

Option 2: Fernflower via IntelliJ IDEA

Option 3: Fernflower CLI (Standalone JAR)

Fernflower vs Browser Decompiler vs CFR

Is Fernflower the Same as Vineflower?

Summary