gibMacOS downloads macOS components directly from Apple and can build Internet Recovery USB installers from Windows.
Mist
Mist downloads macOS firmware and installer files through a Mac utility.

About Mist
Mist is an open source Mac utility that downloads macOS firmware and installer files. It lists the macOS firmwares and installers available for download, with names, versions, builds, release dates and sizes. The list can optionally include beta versions, and it can be filtered to versions compatible with the Mac running the app. Apple Silicon Macs can download firmware restore files (.ipsw), and Intel-based Macs can generate application bundles, disk images, bootable ISO images or installer packages. Downloads are validated with checksums, and failed downloads are retried automatically.
Mist runs on macOS Monterey 12.0 and later. Catalogs from Apple's Seed Programs may contain beta or unreleased versions of macOS, so users should be members of those programs before using them. Depending on what is downloaded, Mist may need Full Disk Access, which is granted in System Settings. The app can be downloaded from the releases page or installed with Homebrew.
Key features
- Lists available macOS firmwares and installers with versions, builds, release dates and sizes
- Filters listed versions to those compatible with the Mac running the app
- Downloads Apple Silicon firmware restore files (.ipsw) with SHA-1 checksum validation
- Generates .app, .dmg, bootable .iso or .pkg outputs for Intel-based Macs
- Selects Standard or Seed Program software update catalogs, including beta catalogs
- Exports lists as CSV, JSON, Property List or YAML
- Open source, with source code and a license file in the public repository
- Validates downloads using SHA-1 firmware checksums and Chunklist checksums for installers
- Retries failed downloads automatically
- Requires macOS Monterey 12.0 or later
- Seed Program catalogs may contain beta or unreleased macOS versions, and users must be members of those programs
- Depending on what is downloaded, Full Disk Access may need to be allowed for Mist in System Settings
Mist at a glance
- Website
- github.com/ninxsoft/Mist
- Category
- Software & Utilities › Mac Apps
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- macOS
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Mist FAQ
Which macOS version is needed to run Mist?
Can Mist show beta versions of macOS?
How can Mist be installed?
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