AI & Productivity

Clear Grammarly Cache on Mac

Check whether the app offers its own cache option first, then quit it and move the cache folder to the Trash. Your dictionary, style settings and documents are kept in your account, so clearing local files does not remove them.

Last updated: October 31, 20262 min read

Clear the Grammarly cache without guessing

Grammarly data usually takes 200 MB – 2 GB on a Mac. The free scan shows the exact size on your Mac before you change anything.

Scan your Mac free

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

Application: Grammarly
Typical data size: 200 MB – 2 GB
Category: AI & Productivity
File Location: ~/Library/Application Support/Grammarly Desktop

Grammarly cache folders you can clear

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

~/Library/Application Support/Grammarly Desktop App data · local app data, cache and logs Yes, rebuilt automatically~/Library/Caches/com.grammarly.ProjectLlama Cache · temporary app cache Yes, rebuilt automatically

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

What the Grammarly cache holds

Specific to Grammarly

The cache folders hold temporary app data and logs, which the app rebuilds automatically. App settings sit in a separate preferences file, which is also rebuilt automatically. Clearing helps when suggestions lag or when the local folder keeps growing because of logs. Typical data use is 200 MB – 2 GB.

What happens after you clear the Grammarly cache

The app rebuilds its local files the next time it launches, so the first start may take a little longer than usual. You may need to sign in again, since your dictionary and style settings return from your account. Premium stays tied to your account, and browser extensions are unaffected because they are installed separately.

If the app offers a cache option, use it while the app is open.Make sure your open documents are saved before you quit.Quit the app completely before removing any cache files.Move the Grammarly cache folder in hidden Library > Caches to the Trash.

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Account and sync: Your personal dictionary, style settings and documents in the Grammarly editor are stored in your Grammarly account.

Try it without risk

Download and scan for freeSee every Grammarly file and its size. No account needed.
Clean free for 7 daysStart the 7-day free trial of the yearly plan inside the app.
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. Folders marked “Yes, rebuilt automatically” are rebuilt automatically; removing them only makes the next start slower.

Will the cache come back by itself?

Yes. The app recreates these local files the next time it runs, so there is nothing to set up.

Will I need to sign in again?

You may, because your dictionary and style settings are stored in your account and load after you sign in.