How do I open a .DMG file on Windows or Mac?

You can open .DMG files using macOS DiskImageMounter, 7-Zip (Windows), PeaZip, PowerISO. If you do not have native software installed, you can use OpenAnyFile's free File Identifier or convert .DMG to a standard format in your browser.

Is a .DMG file safe to open?

This format carries a safety rating of Low Risk. Verify macOS Gatekeeper code signature before running installers extracted from .DMG images

Can I convert a .DMG file to other formats?

Yes! .DMG can be converted to formats such as .ISO, .ZIP directly in your web browser.

What should I do if a .DMG file is corrupted or won't open?

If your .DMG file displays an invalid header or signature error, check its magic bytes hex header (Varies) using OpenAnyFile's Magic Byte Detector or follow our step-by-step file repair guide.

How do I open .DMG files?

You can open .DMG files using macOS DiskImageMounter, 7-Zip (Windows), PeaZip, PowerISO.

Archives • MIME: application/x-apple-diskimage

.DMG – DMG File Format

Q: What is a .DMG file?

A .DMG file is a DMG File Format associated with Archives. DMG is a mountable Apple Disk Image file format used on macOS to package installer applications, software updates, and encrypted volume disk structures.

DMG is a mountable Apple Disk Image file format used on macOS to package installer applications, software updates, and encrypted volume disk structures.

Primary Category Archives

MIME Type application/x-apple-diskimage

Magic Bytes Signature Varies

Security Risk Rating Low Risk

Recommended Software to Open .DMG

macOS DiskImageMounter

windows, mac, linux • Free

7-Zip (Windows)

windows, mac, linux • Free

PeaZip

windows, mac, linux • Free

PowerISO

windows, mac, linux • Free