Mist

A Mac utility that automatically downloads macOS Firmwares / Installers.

Features:

• List all available macOS Firmwares / Installers available for download:
• • Display names, versions, builds, release dates and sizes
• • Optionally show beta versions of macOS
• • Filter macOS versions that are compatible with the Mac the app is being run from
• • Export lists as CSV, JSON, Property List or YAML
• Download available macOS Firmwares / Installers:
• • For Apple Silicon Macs:
• • • Download a Firmware Restore file (.ipsw)
• • • Validates the SHA-1 checksum upon download
• • • Copy firmware URLs to clipboard
• • For Intel based Macs (Universal for macOS Big Sur and later):
• • • Generate an Application Bundle (.app)
• • • Generate a Disk Image (.dmg)
• • • Generate a Bootable Disk Image (.iso)
• • • • For use with virtualization software (ie. Parallels Desktop, UTM, VMware Fusion, VirtualBox)
• • • Generate a macOS Installer Package (.pkg)
• • • • Supports packages on macOS Big Sur and newer with a massive 12GB+ payload!
• • • Optionally codesign Disk Images and macOS Installer Packages
• • • Cache downloads to speed up build operations
• • • Select custom Software Update Catalogs, allowing you to list and download macOS Installers from the following:
• • • • Standard: The default catalog that ships with macOS
• • • • Customer Seed: The catalog available as part of the AppleSeed Program
• • • • Developer Seed: The catalog available as part of the Apple Developer Program
• • • • Public Seed: The catalog available as part of the Apple Beta Software Program
• • • • Note: Catalogs from the Seed Programs may contain beta / unreleased versions of macOS. Ensure you are a member of these programs before proceeding.
• • • Validates the Chunklist checksums upon download
• • Automatic retries for failed downloads!