jtool2 ☆
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Description:
Tool to help out reverse engineering, security researchers, and tweak developers
Type: Cask  |  Latest Version: 2.2@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Security
Tags: reverse-engineering security macos cli debugging binary-analysis
Install: brew install --cask jtool2
About:
jtool2 is a powerful command-line utility for macOS that serves as a modern replacement for legacy tools like otool and nm. It provides detailed inspection of Mach-O binaries, including disassembly, code signature analysis, and entitlement extraction. The tool is specifically designed to aid in reverse engineering, security auditing, and iOS/macOS tweak development.
Key Features:
  • Mach-O binary disassembly and analysis
  • Code signature and entitlement inspection
  • Dependency and library analysis
  • Objective-C class and method reconstruction
Use Cases:
  • Analyzing malware and suspicious binaries for security research
  • Reverse engineering iOS/macOS applications for compatibility
  • Debugging and verifying code signatures during tweak development
Alternatives:
  • otool – Apple's built-in tool; jtool2 offers more detailed output and better Mach-O parsing
  • radare2 – Full framework vs. focused utility; jtool2 is lighter and macOS-specific
  • Hopper Disassembler – GUI vs. CLI; jtool2 is free and scriptable for batch analysis
Version History
Detected Version Rev Change Commit
Aug 5, 2025 2:20pm 2.2 0 VERSION_BUMP c8d7710d
Jun 27, 2024 6:18pm 2.2 0 VERSION_BUMP dafd5ab3
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