Download macOS Installer

macOS Sequoia 15.5, full list
macOS Sonoma 14.7.6, full list
macOS Ventura 13.7.6, full list
macOS Monterey 12.7.6, full list
macOS Big Sur 11.7.10, full list

You don’t need a bootable installer to downgrade macOS on Mac computers with Apple Silicon. Boot into macOS Recovery. Open Disk Utility and create a new APFS volume. Open Terminal and run: /Volumes/Data/Applications/Install\ macOS\ *.app/Contents/MacOS/InstallAssistant_springboard

macOS Catalina 10.15.7, RecoveryHDMeta.dmg, InstallESD.dmg
macOS Mojave 10.14.6, RecoveryHDMeta.dmg, InstallESD.dmg
macOS High Sierra 10.13.6, RecoveryHDMeta.dmg, InstallESD.dmg

To assemble these into an offline installer, click here to copy command, then paste and run it in Terminal. Alternatively, use App Store or Mist downloader to automatically download and assemble them.

macOS Sierra 10.12.6
OS X El Capitan 10.11.6
OS X Yosemite 10.10.5
OS X Mavericks 10.9.5
OS X Mountain Lion 10.8.5
OS X Lion 10.7.5
Mac OS X Snow Leopard 10.6.7
Mac OS X Leopard 10.5.7 (Intel)
Mac OS X Leopard 10.5.6 (PowerPC)
Mac OS X Tiger 10.4.10 (Intel)
Mac OS X Tiger 10.4.6 (PowerPC)
Mac OS X Panther 10.3 CD 1, CD 2, CD 3
Mac OS X Jaguar 10.2 CD 1, CD 2
Mac OS X Puma 10.1.3
Mac OS X Puma 10.0.3

You can download Mac OS X updates for PowerPC from Macintosh Garden.

Restore Image
Safari Installer
Screenshots
macOS Beta
iOS Beta

iTunes 12.6.5 (PC, 64-bit)
iTunes 12.6.5 (PC, 32-bit)
iTunes 12.6.5 (Mac)