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How to free up space on a Mac by clearing cache files

Illustrated folder and storage bar for a guide to clearing Mac cache files

A Mac that says the disk is almost full is often holding cache files apps can rebuild. This is the same path in today’s Bytesweavers Mac tip: quit the apps, open ~/Library/Caches, move those files to the Trash, empty it, and restart.

When this is worth doing

Use it when Storage says the disk is nearly full and you have already emptied Downloads and the Trash. Cache files are temporary data. They are not your documents, photos, or mail.

Mac tip card: free up space by clearing hidden cache files

Clear the cache folder

  1. Quit the apps you can. An open app may lock its cache while you delete it.
  2. Open Finder, then press Command + Shift + G.
  3. Type ~/Library/Caches and press Return.
  4. Press Command + A, then Command + Delete, to move the selection to the Trash.
  5. Empty the Trash, then restart the Mac.
Finder Go to Folder ready for the Caches path
Caches folder selected so it can be moved to the Trash
Empty the Trash and restart after clearing Mac caches

What not to delete

Stay inside ~/Library/Caches. Do not delete your home Library folder, Documents, Desktop, or Mail. If Finder says a file is in use, skip that one and empty the rest.

What to expect

Apps rebuild the caches they need the next time you open them, so the first launch can be a little slower. How much space comes back depends on the Mac. This does not remove large videos, photos, or installed apps. If the disk is still full after a restart, check Storage for those bigger items.

Short version: Free up space on your Mac in 10 seconds.

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Writes guides and product notes for Bytesweavers.

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