DMG is Apple’s proprietary disk image format, native to Mac OS X. There are actually a whole bunch of different types, format and options within this format. There are options for encryption, compression, and different kinds of partition schemes, among others. Unfortunately, this can make things pretty confusing. You no longer need the disk image you downloaded, so follow these steps: Close any Finder windows that have been left open. Eject the disk image (not the.DMG file). Click on its desktop icon, then press CMD+E. Delete the.DMG file by dragging it to the trash. Open DMG file with DMG Extractor. DMG Extractor is a software which as follows from its name allows opening and extracting DMG files. Free version of DMG Extractor only allows to extract one file at a time which may make process of retrieving files from DMG cumbersome. Thus 7-Zip is still our first choice for DMG file extraction.
File TypeMac OS X Disk Image
| Developer | Apple |
| Popularity |
| Category | Disk Image Files |
| Format | Binary |
What is a DMG file?
Opening Dmg Files Not Mountable
A DMG file is a mountable disk image created in macOS. It contains raw block data typically compressed and sometimes encrypted. DMG files are commonly used for macOS software installers that are downloaded from the Internet, which mount a virtual disk on the desktop when opened.
The DMG format replaces the older .IMG file format used in Mac OS Classic. DMG disk images can be opened using the Apple Disk Utility that is bundled with macOS on Apple computers.
DMG files are Mac-specific and are not intended for use in Windows. However, Windows Daemon Tools may be able to mount virtual drives from some DMG image files. Other utilities may also be able to convert DMG files to a format that can be recognized by Windows.
Unknown files on your Mac? Try File Viewer.
Opening Dmg Files
Programs that open DMG files
| Mac | | Apple Disk Utility | | Roxio Toast 18 | | Incredible Bee Archiver | | Catacombae HFSExplorer |
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| Windows | | File Viewer Plus | | 7-Zip | | PeaZip | | Catacombae HFSExplorer | | Reincubate DMG Extractor | | DMG2IMG | | DMG2ISO |
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Opening Basesystem.dmg Dialog