OptiClear

Cloud Storage

Clear MEGA Cache on Mac

To clear the MEGA cache, quit the app first, then move the Mega Limited folder in Application Support to the Trash, after checking whether the app offers its own cache option. Your files stay in your encrypted account and in your synced folders, so clearing the cache does not touch your documents.

Last updated: 2 min read

Clear the MEGA cache without guessing

MEGA data usually takes 500 MB – 10 GB 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
MEGA
Typical data size
500 MB – 10 GB
Category
Cloud Storage
File Location
~/Library/Application Support/Mega Limited

MEGA cache folders you can clear

MEGA has no separate cache folder. Its folders hold settings and your own data, so there is nothing to clear safely by hand.

What the MEGA cache holds

Specific to MEGA

The cache is the Mega Limited folder in Application Support, and it holds transfer state and logs rather than your files. Clearing it helps when the app is slow or that folder has grown toward the typical size of 500 MB – 10 GB. Synced folders are a different case: they can grow because MEGA keeps deleted and replaced files in a hidden .debris folder inside each synced folder, and clearing the cache does not empty those. If synced folders are the real problem, check them separately.

What happens after you clear the MEGA cache

Clearing the cache does not cancel your plan, which is tied to your account, and your encrypted files stay in your account. Synced folders remain on your Mac, and the cache clear does not change them. The app may need to rebuild its transfer state and logs, so the first start afterwards could be slower, though this is possible rather than certain. Whether you need to sign in again is not covered here, so sign in as usual if asked.

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Account and sync
Files are stored in your MEGA account with end-to-end encryption.

Try it without risk

  1. Download and scan for freeSee every MEGA file and its size. No account needed.
  2. Clean free for 7 daysStart the 7-day free trial of the yearly plan inside the app.
  3. Keep it or cancelCancel in your App Store settings at least 24 hours before the trial ends and you won't be charged.
Download free and scan

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

Frequently asked questions

Yes.
Will the cache fill up again after clearing?
It may, because the app rebuilds transfer state and logs while it runs, but your files are not stored in that cache.
Why do my synced folders stay large after clearing?
Deleted and replaced files are kept in a hidden .debris folder inside each synced folder, and clearing the cache leaves that folder alone.

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