How to deobfuscate jar file [closed]

Question

Is there is any open source tool for deobfuscation? Not able to read the decompiled files its showing class/method as A/B/C etc

Answer 1

The only open-source tool for deobfuscating in a meaningful way is your head.

Reverse engineering is hard, and requires patience, fortitude, caffeine, ESP, and Star Trek.

Answer 2

As far I know, there is no such tool. I can't envisage it being possible, as there is no way for a deobfuscation tool to know what meaningful names to give to methods and classes.

And that is why people obfuscate.