DMGKit is a DMG packaging tool designed specifically for macOS developers, aiming to integrate the originally complex and fragmented processes of code signing, notarization, and DMG creation into a native application, making it easier for developers to release macOS software.

All-in-one DMG packaging workflow

DMGKit consolidates code signing, Apple notarization, stapling, DMG creation, and installer generation into a single interface, eliminating the need for developers to frequently switch between command-line tools or write complex scripts.

Supports Apple Notarization

As Apple imposes increasingly strict security requirements on macOS software, unnotarized apps are often blocked by the system. DMGKit can automatically handle uploads, notarization status checks, and staple operations, significantly reducing the manual effort of running the notarytool command.

Visual customization of the installation interface

Traditional DMG creation often requires scripts, Finder, or third-party tools to adjust background images, icon positions, and the Applications shortcut. DMGKit provides a more intuitive way to customize the installation interface, allowing developers to quickly create polished installation experiences—similar to those found in many well-known Mac apps—where users simply drag the app to Applications to install.

Supports both App and PKG installers

In addition to handling regular .app applications, DMGKit also supports signing, notarization, and distribution workflows for .pkg installers, making it suitable for more complex enterprise software and system-level application release scenarios.

Built with native SwiftUI

DMGKit itself is a native SwiftUI application, with a UI style consistent with the macOS system, offering a smooth experience that aligns with Mac developers’ habits.

Reduces reliance on command-line tools and scripts

The traditional Mac release process typically involves multiple commands such as codesign, notarytool, and hdiutil, which can be error-prone, especially for novice developers. DMGKit encapsulates these steps into a graphical interface, greatly lowering the learning curve.

Ideal for independent developers and small teams

For individual developers, indie software authors, and small teams, DMGKit saves significant time on building and releasing, allowing developers to focus more energy on their products rather than the packaging process.