About macUSB

macUSB is a guided macOS app for creating bootable USB media on Apple Silicon and Intel Macs using local files or the built-in macOS downloader.

Key Features
  • Built-in Downloader: discover and download macOS installers, including available Public Beta releases, from Apple servers.
  • Local source support: create bootable USB media from local installers and disk images.
  • Checksum insight: calculate SHA-256 checksums for recognized .iso, .cdr, and .dmg source images.
  • Apple Silicon legacy support: automatic compatibility handling for older macOS installers during USB creation.
  • Automatic media prep: partition and format checks with conversion when required.
  • Linux and Windows support: create bootable USB media from supported Linux and Windows .iso images, with optional Windows setup automation.