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Is Xcode CoreSimulator Safe to Delete?

Build CachesTypical size: 5-30GB
Use Caution

Safe to delete old simulators, but active ones contain your test data.

Side effects: You'll lose any apps, data, and settings in the deleted simulators.

What is ~/Library/Developer/CoreSimulator?

CoreSimulator contains iOS, watchOS, and tvOS simulators. You can delete unused simulators through Xcode, which is safer than manual deletion.

Is it safe to delete?

Use caution — While parts of ~/Library/Developer/CoreSimulator may be safe to delete, you should carefully review the contents before proceeding.

Consider backing up important data before deleting, and only remove filesyou're certain aren't needed.

What happens after deletion?

You'll lose any apps, data, and settings in the deleted simulators. The folder will be recreated automatically by the application when needed. This process is typically seamless but may take some time depending on the amount of data that needs to be regenerated.

How to delete it

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Terminal

rm -rf ~/Library/Developer/CoreSimulator

Warning: This command permanently deletes the folder. Double-check the path before running.

Finder

  1. Open Finder
  2. Press ⌘ + Shift + G (Go to Folder)
  3. Paste: ~/Library/Developer/CoreSimulator
  4. Move the folder to Trash

MacMop scans all your hidden caches and tells you exactly what's safe to delete.

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