The Free Java Decompiler for Everyone

Understand how APIs, components, frameworks, and all the critical code you use really works by decompiling and seeing inside. SecureTeam Java Decompiler let's you look into any Java code even if you don't have the source, making it fully visible for you to aid in your debugging efforts, understand how third-party libraries work, and analyze your optimized code.

Java decompiler

Byte Code to Java Code

Decompiles any Java artifact. Support Java 5+ language features like generics and typesafe enums.


Debug your software

Uncover third-party libraries inner workings. Discover the source of hard to find bugs, by seeing where the problem lies - whether it's in your own code, third-party libraries, or components used by your application.


Learn how 3rd-party libraries work

Peek into the third-party libraries or components you're using, find undocumented functionality and get more out of the APIs and technologies you’re using.

See the full list of features
Download zip and run directly from your Windows PC
Download gzip and run directly from your Mac or Linux box

SecureTeam is a global provider of .NET code protection & software licensing solutions. Its products allows software vendors to extend protection beyond obfuscation solutions by encrypting MSIL code and decrypting it one method at a time during exceution. Global leaders utilize SecureTeam's solution to protect their intellectual property, guard their code against tampering or code theft & control the usage of their software.