DMG viewer
To open a DMG file, drop it in the box below. It opens straight away, even with no extension or the wrong one. Your browser opens it on your device: nothing is uploaded.
Open in
Opened on this device, never uploadedDrop or paste another file at any time
What you see
| DMG in the viewer | |
|---|---|
| Read | The trailer and partition list |
| Not read | The HFS+ and APFS file systems inside |
| Encrypted | Said so |
| Extensions | .dmg |
| Upload | None: opened on your device |
What is a DMG file?
In short
DMG is the Apple disk image: how Mac apps are downloaded. It holds an HFS+ or APFS disk, often compressed.
What the image is: its size, file system and partitions, or that it is encrypted. Its files can’t be listed in the browser.
How to open a DMG file
- Add your DMG. Drop the file in the box, choose it or paste it.
- Look at it. What the image is: its size, file system and partitions, or that it is encrypted. Its files can’t be listed in the browser.
- Take it further. Download any file from inside an archive, or open another file.
Questions
7-Zip opens many DMG files. Here you can see what the image is, its size and partitions.
No. The viewer runs in your browser and opens the file on your device. Nothing is sent anywhere.