How to uninstall Xcode completely

Before you start

• Do you only need space? Clearing DerivedData and simulators often frees more than uninstalling.
• Keep the Command Line Tools if you use git, Homebrew or compilers. They're separate from Xcode.
• Export any archives whose dSYMs you need to symbolicate crash reports.

Remove simulator runtimes first

Runtimes live in a system location that Xcode manages; deleting them with simctl while Xcode is still installed is the clean way.

xcrun simctl runtime list

xcrun simctl runtime delete all

Delete Xcode and its folders

Quit Xcode, then remove its data from your Library. After that, drag /Applications/Xcode.app to the Trash and empty it.

rm -rf ~/Library/Developer/Xcode ~/Library/Developer/CoreSimulator ~/Library/Caches/com.apple.dt.Xcode

rm -rf ~/Library/Preferences/com.apple.dt.Xcode.plist ~/Library/Developer/XCPGDevices

rm -rf is permanent: nothing goes to the Trash. Double-check each path before pressing Return.

Optionally: Command Line Tools

Only if you don't use developer tools at all. Run xcode-select --install to get them back.

sudo rm -rf /Library/Developer/CommandLineTools

With Broom

Broom's Applications screen shows Xcode's full footprint, app plus Library data, and uninstalls it with its leftovers. Cleanup lists DerivedData, archives, device support and simulators separately if you'd rather keep Xcode. Either way everything goes to the Trash, so nothing is permanent until you empty it.