DMG File

What are DMG files and how to open them

Are you having problems opening a DMG file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your DMG files.

What is a DMG file?

A .DMG file is a Macintosh Disk image file.

A DMG file contains an exact copy (image) of a hard drive and can be treated as such by the Macintosh OS X operating system. These files can be created with Disk Copy, burned to a CD, or even mounted as a normal volume on Macintosh computers.

Some .dmg files may be encrypted in addition to being compressed, for added file security. These files are often used by software installers that download applications from the Internet to a user's computer.

Software on non-Macintosh systems can extract the content from these files as well.

How to open DMG files

We have identified four DMG openers that are compatible with this specific type of DMG file.

Programs that open Macintosh Disk image files

Last updated: February 20, 2024

Various apps that use files with this extension

These apps are known to open certain types of DMG files. Remember, different programs may use DMG files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about DMG file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.