macholibre is a Mach-O and Universal binary parser. It extracts information such as architectures, load commands, dynamic libraries, symbols, function imports, and tons more. Then it packs all of that information into JSON for ease of analysis and integration.

Python 2

With Python 2 in its sunset years, macholibre has moved on to Python 3. However, for those of you that are stuck on Python 2, see the python2 branch. No promises on long-term support, but the code differences right now are minimal and should be fairly easy to maintain.


This project requires Python 3.4+ to run, due to API changes in plistlib.

I tried to make this tool with as little external dependencies as possible, and I think I did pretty well on that front. The only module I import is for parsing CMS signatures. I've configured to automatically install it with the module, but you can also install it seperately with pip or manually from github.

How To


I recommend using pip to install macholibre.

pip3 install git+


As a Module

from macholibre import parse

# mach-o file path
path = '/home/aaron/my_macho'

# return dict
data = parse(path)

# write json to file
out_file = open('/home/aaron/macholibre_output.json', 'w')
parse(path, out=out_file)

As a Script

usage: macholibre [-h] [-c] [-o OUTPUT] input [input ...]

MachoLibre: Mach-O & Universal Binary Parser
  [email protected]

positional arguments:
  input                 input mach-o file(s) to parse

optional arguments:
  -h, --help            show this help message and exit
  -c, --certificates    extract certificates
  -o OUTPUT, --output OUTPUT
                        output JSON file

  macholibre macho
  macholibre -o output.json macho
  macholibre -o output.json machos/*

Output Format

macholibre formats all of its output into a JSON blob. Check out app_store.json as an example using the App Store app.


Mach-O & Universal Binary Parser

Macholibre Info

⭐ Stars112
🔗 Source
🕒 Last Update10 months ago
🕒 Created6 years ago
🐞 Open Issues16
➗ Star-Issue Ratio7
😎 Authoraaronst