Download FastDMG 1.0.2 (Mac) – Download Free

Disk image verification will tell you if the .dmg file is corrupted after it was created. This may help, but it is also time-consuming, especially for very large files. All images you mount are automatically verified on macOS, and waiting for these checks can waste valuable time.

Fast DMG It is an open source application that can replace DiskImageMounter, which is the default macOS application used to process disk images. It is Apple’s GUI Utility

Command line utility, which allows you to skip verification and user license agreements. It runs in the background, just like DiskImageMounter.

How to install FastDMG

First, you need to move the application to your application folder. Next, launch it and configure it to your liking.Then, right click on a .dmg File and click getting information (Or, click it and press ⌘I).Finally, from Open with Drop-down menu and click Change all.

Now all DMG files will be opened with FastDMG.The app can also handle .iso and Toast Images, you can also follow the same steps to change the default application for these files.

Speed ​​up the installation of disk images

If you have an up-to-date Mac and open a small .dmg file, you may not notice much difference, but the benefits are obvious when using an old system or installing a large disk image.

FastDMG also automatically accepts all user license agreements, and some developers choose to add them to their .dmg files. This doesn’t make much difference for ordinary users, but if you need to install dozens of images every day, this is a welcome help.

Seamless DiskImageMounter Replacer

After you configure the app for the first time, you will never have to see it again. It runs in the background and feels like you are using Apple’s default disk image installer. The only difference is that it is faster.

Since it uses hdiutil (a command line tool included in macOS) to open files, FastDMG is as reliable as you would expect. The project is also open source, so if you are curious about how it works, you can check the code.