Erase / delete all Xcode Simulator clones from Terminal CLI

Open a terminal and issue one of the following commands:

To shutdown and then erase / factory reset the Simulator clones – which doesn’t need an Xcode restart:

xcrun simctl --set testing shutdown all
xcrun simctl --set testing erase all

To delete / remove all the Simulator clones – remember to restart Xcode after doing this:

xcrun simctl --set testing delete all

If you want to list all the currently available ones:

xcrun simctl --set testing list devices

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