What is ~/Library/Caches on Mac?
~/Library/Caches sits at ~/Library/Caches. macOS uses it for application caches for faster relaunch. On an active Mac it typically holds 2 GB – 50 GB.
- File Location
~/Library/Caches- What Gets Cleaned
- application caches for faster relaunch
- Space you get back
- 2 GB – 50 GB
- Comes back by itself
- The next time you open each app
The part most guides leave out
This is your own Home folder, not a system one — every app writes here freely and nothing clears it out. Emptying it is safe, but quit the apps first: deleting a cache file an app has open just makes it write the file straight back.
What happens if you delete it
Nothing here is the only copy. macOS puts it back on its own.
What you actually lose: One slower launch per app
See it working
Let OptiClear find these files
Doing this by hand is slow and easy to get wrong. OptiClear scans your Mac, lists every related file with its size, and moves only what you select to the Trash, so you can still restore it. Scanning is free; cleaning requires OptiClear Pro.
Frequently asked questions
Why is ~/Library/Caches so large?
It grows with use and macOS puts no ceiling on it. 2 GB – 50 GB is normal on a Mac that has been in service a while — the detail guide breaks down what fills it.
Is it safe to delete ~/Library/Caches?
Yes, once the apps using it are quit. It holds derived data, not originals, so macOS rebuilds whatever it still needs.