procyon-decompiler ☆

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Description:
Modern decompiler for Java 5 and beyond

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: java decompiler reverse-engineering bytecode development

Install: brew install procyon-decompiler

About:
Procyon is a high-performance Java decompiler designed to handle modern Java language features, including Java 8 and beyond. It excels at reconstructing complex constructs like lambdas, switch expressions, and try-with-resources statements. This tool is invaluable for developers needing to recover source code from compiled bytecode for analysis or legacy maintenance.

Key Features:

Supports modern Java versions (8+), including lambdas and streams
Reconstructs complex control structures like switch expressions
Provides both a command-line interface and a library API
High fidelity in code reconstruction compared to older decompilers

Use Cases:

Analyzing third-party libraries when source code is unavailable
Recovering lost source code from compiled Java applications
Security auditing of compiled bytecode for vulnerabilities
Learning how Java language features are implemented in bytecode

Alternatives:

cfr – CFR is another modern decompiler often praised for its speed and excellent lambda support.
fernflower – Fernflower is an analytical decompiler used by IntelliJ IDEA, offering good integration with IDEs.

Version History

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