What is a .DMG file?
DMG is a macOS disk image, the usual way Mac apps are downloaded and installed. Opened on macOS.
- Did you know
- A DMG mounts like a virtual disk, which is why Mac apps so often arrive as one.
- The .dmg uses Apple’s UDIF format, which arrived with Mac OS X and replaced the older NDIF disk images of classic Mac OS.
- A DMG can transparently compress and even encrypt its contents while still mounting like an ordinary disk.
- What Analyser reads
- Identify and read metadata from programs and installers: Windows (EXE, DLL, MSI), Android (APK), iOS (IPA), macOS (DMG), and Linux (AppImage). For Android APKs it decodes the binary AndroidManifest.xml - package name, version, min/target SDK, the full permission and feature list, launcher activity, signing scheme (v1/v2/v3) and the native-code ABIs.
- Depth of analysis
- .DMG is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .DMG file
- Drag a .DMG file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.