What is dmg file? Understanding and opening dmg files
Are you facing difficulties opening dmg files on your computer, or wondering exactly what dmg file is?
We've got the best software solutions for opening dmg files effortlessly.
.dmg file type #1: Disk image for Apple Mac
dmg files are disk images for Mac OS X (macOS). They have replaced the previously used IMG format and function similarly to standard ISO images.
Further details
DMG file represents the default, mountable disk image file used in Mac OS X /macOS.
It contains raw block data typically compressed and sometimes encrypted. DMG files are often used for software applications distributed over the Internet. They can be mounted as a drive and run like a physical disk on the Mac.
These files are similar to the ISO files used by Windows for disc images.
Open dmg file with:
Apple Disk Utility
A disk mounting utility from Mac
Apple Finder
The default file manager in macOS
macOS
A Unix-based desktop operating system for Apple Mac computers
Mac OS X
Unix-based operating system for Apple Mac computers
7-zip
Popular open source file archiver with a high compression ratio
FreeDMG
App used to create Apple DMG disk images
AnyToISO
A disk image converter for Microsoft Windows
.dmg file type #2: Oracle binary format dump data
Files with dmg file extension can also be found as binary dumps created by Oracle programs. Should not be confused with the common Mac OS X (macOS) disk image that also shares the DMG extension.
Further details
The dmg file extension is also related to Oracle Database, an object-relational database management system produced by Oracle Corporation.
This type of dmg file stores dump data in binary file format created by ORACLE Export utility and Import utility.
Open dmg file with:
Oracle Database
An object-relational database management system from Oracle