(2009) - Tool to deobfuscate Java codes

Question

Is there a tool to deobfuscate java obfuscated codes?

The codes is extracted from a compiled class but they are obfuscated and non-readable.

Answer 1

Did you try to make the code less obscure with Java Deobfuscator (aka JDO), a kind of smart decompiler?

Currently JDO does the following:

• renames obfuscated methods, variables, constants and class names to be unique and more indicative of their type
• propogates changes throughout the entire source tree (beta)
• has an easy to use GUI
• allow you to specify the name for a field, method and class (new feature!)

Currently JDO does not do the following (but it might one day)

• modify method bytecode in any way