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A macOS GUI app for designing and building custom DMG disk images

87 starsSwift

Make beautuful DMG files with WYSIWYG editor

by kageroumado·May 14, 2026·3 points·6 comments

AI Analysis

●●SolidCozySolve My Problem

WYSIWYG DMG designer when DMG Canvas costs $20 and CLI tools are painful.

Strengths
  • Full Swift implementation parsing DS_Store binary format without external dependencies
  • Variable blur masks and per-icon frosted glass panels with live preview
  • Comprehensive test suite covering Alias record generation and Codable round-trips
Weaknesses
  • macOS 15+ requirement excludes many users still on Monterey or Ventura
  • DMG Canvas already does this as a paid product, limiting novelty
Target Audience

macOS developers shipping desktop applications

Similar To

DMG Canvas · create-dmg · appdmg

Post Description

When it was time to make a DMG for my browser, I realized that none of the solutions provide a simple and user friendly interface to design DMG files on macOS with support for signing. This free and open source app allows you to design beautiful DMG file backgrounds using a fully Swift implementation of DMG encoding. It supports both GUI and CLI modes.

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