Utilities

Clear OmniDiskSweeper Cache on Mac

Clearing the cache for the app means emptying one small folder that holds only its update check cache. Your settings, your documents and the app itself stay where they are, and the cache is rebuilt automatically. It is worth doing only if the update check is misbehaving, because the app's footprint is already tiny.

Last updated: October 31, 20262 min read

Clear the OmniDiskSweeper cache without guessing

OmniDiskSweeper data usually takes 10 MB – 100 MB on a Mac. The free scan shows the exact size on your Mac before you change anything.

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Free scan · No account · Nothing is deleted without your OK · Moves to the Trash first · macOS 14+

Application: OmniDiskSweeper
Typical data size: 10 MB – 100 MB
Category: Utilities
File Location: ~/Library/Application Support/OmniDiskSweeper

OmniDiskSweeper cache folders you can clear

These folders are rebuilt automatically, so removing them does not touch your own files.

~/Library/Application Support/OmniDiskSweeper App data · small app data, often absent Yes, rebuilt automatically~/Library/Caches/com.omnigroup.OmniDiskSweeper Cache · update check cache Yes, rebuilt automatically

Locations are the standard macOS folders OmniDiskSweeper uses; some appear only after you use the matching feature.

What the OmniDiskSweeper cache holds

Specific to OmniDiskSweeper

The cache folder holds only the app's update check cache, which the app recreates on its own. Its settings live in a separate preferences file, and any small app data sits in a different folder, so neither is part of the cache. The app does not keep scan results between launches, so its data usually falls in the 10 MB – 100 MB range. Clearing the cache is therefore a fix for an update check that fails or shows stale results, not a major source of free space.

What changes after you clear the OmniDiskSweeper cache

The next time the app runs, it rebuilds the update check cache by itself. The first launch may feel a little slower while that happens. Your preferences, documents and any app data remain in place, so you should not need to change any settings. If something goes wrong, items sent to the Trash can be restored until you empty it.

Open the app and note what its update check currently shows.Quit the app completely before removing any cache files.Move the contents of the app's cache folder in Library to the Trash.Launch the app again and check that its update check works.

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After the free trial, Pro costs $39.99 per year in your country's App Store; cancel any time.

Frequently asked questions

Yes. Folders marked “Yes, rebuilt automatically” are rebuilt automatically; removing them only makes the next start slower.

Will I have to set up the app's settings again?

No. Your settings are kept in a separate preferences file, and clearing the cache does not touch it.

How do I find the Library folder when it is hidden?

In Finder, choose Go > Go to Folder, then open the Library folder, which is hidden by default.