fastdmg ☆

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Description:
Alternative to Apple's DiskImageMounter app

Type: Cask | Latest Version: 1.0.3@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: disk-image mounter productivity utilities macos

Install: brew install --cask fastdmg

About:
FastDMG is a lightweight, dedicated utility for quickly mounting disk images without the overhead of Apple's default DiskImageMounter. It provides a streamlined interface that handles various image formats efficiently. The tool is designed for users who frequently work with DMG files and need a faster, more focused mounting solution.

Key Features:

Faster mounting of disk images compared to default macOS utility
Supports multiple disk image formats including DMG, UDIF, and SPARSE
Minimalist interface with drag-and-drop functionality
Automatic image verification and checksum validation
Command-line support for automation and scripting

Use Cases:

Developers needing to quickly mount multiple disk images during software installation testing
Power users who regularly work with downloaded software packages and disk images
System administrators automating deployment workflows with disk image handling

Alternatives:

Apple DiskImageMounter – Built-in but slower and more resource-intensive
hdiutil – Command-line only, no GUI interface
Toast Titanium – Full-featured disc burning suite, much larger footprint

Version History

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