DMG 格式

关于DMG文件的一切

可创建

否

可解压

是

扩展名

.dmg

平台

macOS native, Windows/Mac with software

DMG 指南

How to Open DMG Files on Windows

什么是DMG文件？

A DMG file is a disk image format used by macOS for software distribution, similar to ISO on Windows. When opened on Mac, it mounts as a virtual drive.

DMG files can contain compressed file systems, encryption, and are commonly used for distributing macOS applications (.app files) and installers.

On Windows, 7-Zip can extract files from uncompressed and ZLIB-compressed DMG images, allowing you to access Mac files without a Mac.

7-Zip能打开DMG吗？

7-Zip can open and extract files from uncompressed and ZLIB-compressed DMG images.

7-Zip cannot open encrypted DMG files — these require macOS or specialized Mac software with the password.

7-Zip treats DMG files like archives, allowing you to browse and extract individual files on Windows.

如何解压DMG文件

Right-click the DMG file

Locate your .dmg file in Windows Explorer, right-click it, and navigate to "7-Zip".

Choose extraction option

Select "Extract Here" or "Open archive" to browse the DMG contents before extracting.

Access extracted files

7-Zip extracts the files from the DMG to your chosen destination. Note that macOS app bundles (.app) will appear as folders on Windows.

如何创建DMG压缩包

7-Zip cannot create DMG files

DMG is a macOS-specific format. 7-Zip on Windows can extract DMG files but cannot create them.

Creating DMG files

To create DMG files, use macOS Disk Utility or the hdiutil command line tool on a Mac. There is no reliable way to create DMG files on Windows.

如何给DMG加密

7-Zip cannot open encrypted DMG files. Encrypted DMGs use proprietary Apple encryption that is not supported.

If a DMG is password-protected, you need macOS or Mac software (like Disk Utility) with the correct password to access the contents.

DMG 规格

扩展名	.dmg
压缩	ZLIB, BZIP2, LZMA (varies)
加密	AES-128/256 (Apple proprietary, not supported by 7-Zip)
平台	macOS native, Windows/Mac with software
最大大小	Varies
开发者	Apple Inc.
MIME Type	application/x-apple-diskimage

DMG常见错误与解决方案

Cannot open DMG file

原因: DMG is encrypted or uses an unsupported compression method.

解决方案: 7-Zip only supports unencrypted DMG files with ZLIB compression. Encrypted DMGs require macOS with the password. Try re-downloading if the file may be corrupted.

DMG extraction shows .app as folder

原因: macOS .app bundles are actually directories.

解决方案: This is normal. On macOS, .app appears as a single application, but it's actually a folder structure. The contents are correct; macOS-specific files won't run on Windows.

DMG vs 7Z

Feature	DMG	7z
Purpose	macOS disk image	General archive
Can create with 7-Zip	No	Yes
Can extract with 7-Zip	Yes (unencrypted only)	Yes
Encryption	Apple proprietary	AES-256

DMG FAQ

Can 7-Zip open DMG files?

Yes, 7-Zip can open and extract files from unencrypted DMG files on Windows. However, it cannot open encrypted DMG files.

Can 7-Zip create DMG files?

No. DMG is a macOS-specific format that can only be created on Mac using Disk Utility or hdiutil.

How to open DMG on Windows?

Install 7-Zip, then right-click the .dmg file > 7-Zip > Extract Here or Open archive. You can browse and extract files from unencrypted DMG images.

Can I run Mac apps from a DMG on Windows?

No. Even if you extract a .app from a DMG using 7-Zip, macOS applications cannot run on Windows. You can only access data files (images, documents, etc.) from the DMG.

Why can't 7-Zip open my DMG file?

The DMG may be encrypted (7-Zip doesn't support Apple encryption), corrupted, or use an unsupported compression method. You need macOS with the password to open encrypted DMGs.