OptiClear

Clear OnyX Cache on Mac

Over time, OnyX accumulates cache, logs in ~/Library/Application Support/OnyX that can grow to 10 MB – 100 MB. Clearing them often fixes glitches, login loops and frees serious disk space.

Last updated: 2 min read

Application
OnyX
File Location
~/Library/Application Support/OnyX
What Gets Cleaned
cache, logs
Space Recovered
10 MB – 100 MB
Risk Level
Safe
Category
Utilities

Manual cleanup steps

  1. Quit the app completely (⌘+Q in the menu bar).
  2. Open Finder and press ⌘+Shift+G to open "Go to Folder".
  3. Paste this path and press Enter:
    ~/Library/Application Support/OnyX
  4. Select the files you no longer need and move them to Trash. Empty Trash to reclaim the space.

See it working

OptiClear — Scan overview — every category on one screen
Scan overview — every category on one screen
OptiClear — Large and aging files, ranked by what they cost you
Large and aging files, ranked by what they cost you
OptiClear — Privacy audit: what each app has been allowed to reach
Privacy audit: what each app has been allowed to reach

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.

View on the Mac App Store How OptiClear works

Frequently asked questions

Is it safe to delete these files manually?
Usually, yes. Files in ~/Library/Application Support/OnyX are created by the app and can be removed once it has quit. Risk level: Safe. Move them to the Trash rather than deleting them permanently, so anything you still need can be restored; the app recreates what it requires.
Will I lose my settings or data?
Manual removal of the support folder resets the app to defaults. To keep settings, back up the location first or use OptiClear's selective cleanup.

Related cleanup guides