Can I Delete Xcode Simulator Runtimes?
Yes, old simulator runtimes can often be removed, but you should first check which iOS versions your active projects still need.
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Usually Safe To Remove
- Simulator runtimes for iOS versions you no longer test.
- Unavailable simulator devices that Xcode can no longer boot.
- Old devices created for experiments or completed projects.
Review First
- Runtimes required by clients, QA, App Store review reproduction, or older supported iOS versions.
- Simulator devices that contain app state you still need for debugging.
- Archives and DeviceSupport folders, which are separate from simulator runtimes.
Read-Only Checks
du -sh ~/Library/Developer/CoreSimulator
xcrun simctl list devices
xcrun simctl list runtimesSafer Cleanup Order
- Close Xcode and Simulator.
- Delete obviously unused simulator devices from Xcode settings.
- Remove old runtimes only after confirming active project targets.
- Keep a note of what changed so you can reinstall a runtime if needed.
Not sure what Xcode storage is safe?
SafeDisk classifies DerivedData, Archives, CoreSimulator, DeviceSupport, and caches into safe, review-first, and keep buckets.
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