'Replaces the system default DMG mounting application; is better in every way.'
- Some Guy on the Internet
FastDMG 'Replaces the system default DMG mounting application; is better in every way.' - Some Guy on the Internet. FastDMG is a free macOS utility to mount.dmg and other disk images quickly, without any unneeded nonsense. It is a very fast and reliable alternative to Apple's annoying DiskImageMounter.And yes, that icon is a reference to After Dark's Flying Toasters. Disk image mounter free download. Kingfisher Kingfisher is a powerful, pure-Swift library for downloading and caching images from the web.
FastDMG is a free macOS utility to mount .dmg
and other disk images quickly, without any unneeded nonsense. It is a very fast and reliable alternative to Apple's annoying DiskImageMounter. And yes, that icon is a reference to After Dark's Flying Toasters screensaver on Classic MacOS.
FastDMG is actually a minimal wrapper around the hdiutil
command line tool that ships with macOS and therefore uses Apple's private DiskImages framework indirectly.
I've personally used FastDMG for many years and it works really well. It's solid, free, open source software and has a home on GitHub. If you like it, feel free to make a donation.
.dmg
file in the Finder and press Cmd-I to show the Get Info window FastDMG will then take care of mounting .dmg
disk images when they're opened in the Finder. You can do the same for .iso
, .toast
and any other disk images supported by FastDMG.
Developer | Apple |
Popularity | |
Category | Disk Image Files |
Format | Binary |
A DMG file is a mountable disk image used to distribute software to the macOS operating system. The file is typically downloaded from the Internet by a Mac user, then double-clicked to install an application on the computer.
Today, software developers typically build and distribute applications for Mac users as DMG, .APP, or .PKG files. DMG files are especially common since their contents can be verified upon installation to ensure they have not been tampered with and they can also be compressed to reduce the size of the installer.
When a Mac user downloads a DMG file, he can simply double-click it to open it with the DiskImageMounter utility that comes with macOS. When the DMG file is opened, it mounts a virtual disk on the desktop and in an Apple Finder window as if it was a CD or a USB flash drive that was just inserted into the computer.
In the Finder window, the Mac user can double-click the program icon, which is an APP file, to run the app. Or the Mac user can drag the program icon to the 'Applications' folder icon to move it to the 'Applications' directory in macOS.
After the software stored in the DMG file is installed, the DMG file is no longer needed. Therefore, DMG files can be deleted after installing the software.
While DMG files are Mac-specific and not intended for use in Windows, there are several Windows programs that can extract their contents or convert them to other formats. Some programs include 7-Zip, PeaZip, and DMG2IMG.
NOTE: The DMG format replaced the .IMG file format, which was previously used in Mac OS Classic.
Open and view .DMG files with File Viewer Plus.