Procyon
Procyon is an open-source Java decompiler that aims to rebuild Java source code from bytecode. It supports decompiling code from Java versions 5 to 15 and can decompile an entire project into human-readable Java code.
java
opensource
decompiler
bytecode
source-code
Procyon: Open-Source Java Decompiler
Procyon is an open-source Java decompiler that aims to rebuild Java source code from bytecode. It supports decompiling code from Java versions 5 to 15 and can decompile an entire project into human-readable Java code.
What is Procyon?
Procyon is an open-source Java decompiler developed by Ststroika that aims to rebuild the original Java source code from compiled Java bytecode. It supports decompiling code from Java versions 5 through 15 and can decompile entire projects or individual .class files into human-readable and compilable Java code.
Some key features of Procyon include:
- Supports decompiling Java 5 - 15 bytecode
- Preserves original naming and structure of code as much as possible
- Handles complex language features like lambdas, try-with-resources, etc.
- Extensible architecture allowing easy integration of new functionality
- Command line, GUI, and developer API available
- Integrates with popular IDEs like IntelliJ, Eclipse, and NetBeans
- Free and open-source under Apache 2.0 license
Procyon can be useful for examining and understanding the implementation of Java libraries or tools when source code is not available. It allows developers to learn from, borrow ideas from, integrate with, and even recompile decompiled third-party Java code. The output Java code approximates the structure and naming of the original source code reasonably well.
Procyon Features
Features
- Decompiles Java bytecode back into equivalent Java source code
- Supports Java versions 5 to 15
- Can decompile entire projects or individual .class files
- Preserves original naming of classes, methods and variables
- Handles common Java language features like generics and lambdas
- Command line interface and GUI available
- Integrates with IDEs like IntelliJ IDEA and Eclipse
- Open source and free for any use
Pricing
- Open Source
- Free
Pros
Produces human-readable source code
Recovers variable names and comments
Helps understand obfuscated or unfamiliar code
Enables code analysis, debugging, and modification
Saves time over manual decompile efforts
Free and open source with active development
Cons
May not perfectly reconstruct original source code
Limited support for some newer Java features
Decompiled code can be messy and take cleanup
GUI version lacks some advanced options
Slower than proprietary alternatives
Official Links
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