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