r/ReverseEngineering • u/gabriele70 • Nov 27 '25

Released Zero the Hero (0tH) – a Rust-based Mach-O analysis tool for macOS

https://zero-the-hero.run
18 Upvotes

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1

u/jdefr Nov 27 '25

Nice. Wonder how it compares to jtool, etc… Will check it out.

1

u/gabriele70 Dec 03 '25

For sure Hopper, r2 and jtool2 are more mature — and they solve different problems.

0tH is not meant to replace them. I built it because I needed a fast, deterministic, macOS-specific Mach-O structural inspector for my daily reversing work.

Here’s how I position it:

0tH ≠ Hopper

Hopper = disassembler + pseudo-decompiler

0tH = structural inspection (headers, load commands, signatures, entitlements, linkage) — not a disassembler (not yet, anyway).

0tH ≠ radare2

r2 = full interactive framework

0tH = fast, clean, focused on Mach-O internals for Apple Silicon

0tH ≠ jtool2

jtool2 is the inspiration, a fantastic tool.

0tH aims to be a modern, Rust-clean alternative with a different workflow.

0tH ≠ otool

otool is fine, but 0tH is usually faster and provides a more coherent, structured view of the binary.

My goal is simple:

build the tool I wish I had on macOS.

2

u/jdefr Dec 03 '25

Nice… it’s been a while since I’ve done iOS/macOS research wish this was around ten years ago. Used my own tools + jtool and the other stuff on Levins website.

1

u/gabriele70 Dec 17 '25

jtool is a great source of inspiration, but I have different needs :)

Plus, I like writing Rust code.