macOS Catalina:
You can download the latest version of macOS Catalina from the Mac App Store using the following link: https://apps.apple.com/us/app/macos-catalina/id1466841314?mt=12

You can also use Terminal to download the full Catalina installer using the command below. Once finished, you can find the installer in your Applications folder with the name “Install macOS Catalina”.

softwareupdate –fetch-full-installer –full-installer-version 10.15.7

Expert users can use the following sucatalog link to retrieve the required components. Check out gibMacOS for an automated tool.
https://swscan.apple.com/content/catalogs/others/index-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz

Mojave

softwareupdate –fetch-full-installer –full-installer-version 10.14.6

https://apps.apple.com/us/app/macos-mojave/id1398502828?mt=12

macOS Big Sur

from the App Store using the following link: https://apps.apple.com/us/app/macos-big-sur/id1526878132?mt=12

Direct installer links can be found here:
● macOS Big Sur 11.5.2
● macOS Big Sur 11.6
● macOS Big Sur 11.6.1
● macOS Big Sur 11.6.2

El Capitan using the following direct link: http://updates-http.cdn-apple.com/2019/ … MacOSX.dmg

macOS High Sierra:
You can download the latest version of macOS High Sierra from the Mac App Store using the following link: https://apps.apple.com/us/app/macos-high-sierra/id1246284741?mt=12

If you have an issue obtaining a full installer from the Mac App Store, make sure you are on the latest version of Sierra or higher. You can also try the macOS High Sierra Patcher.

Expert users can use the following sucatalog link to retrieve the required components. Check out gibMacOS for an automated tool.
https://swscan.apple.com/content/catalogs/others/index-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz

Mac OS X Yosemite using the following direct link: http://updates-http.cdn-apple.com/2019/ … MacOSX.dmg

macOS Sierra:
You can download the latest version of macOS Sierra using the following direct link: http://updates-http.cdn-apple.com/2019/ … tallOS.dmg

Quelle: iClarified.com