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Private Grammar & Spell Checker - HarperReviews, users & alternatives

The private grammar checker for 21st Century English

On the store1 to 3 yrsApproximate
Users≈30KStore-rounded
Rating4.2136 ratings
Updated7 Nov 2026v3.1.0
AccessMedium1 of 3 sensitive

Screenshots

4
1 of 4

Details

Website
Not listed
Version
3.1.0
Size
8.12MiB
Manifest
V3
Extension ID
lodbfhdipoipcjmlebjbgmmgekckhpfb

Elijah Potter

Only listing from Elijah Potter

Reviews

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Permissions

What it can access, not what it does.

Medium access

Can see the address and title of every open tab.

Browser access 2

Sensitive1

  • See the address and title of every open tabtabs

Members see when a new version asks for more.

Website access 1

  • writewithharper.com

Source: Chrome Web Store and Ext Watch checks. “—” = not tracked yet.

Private Grammar & Spell Checker at a glance

Private Grammar & Spell Checker - Harper is a Communication extension by Elijah Potter with ≈30K users. Chrome Web Store users rate it 4.2 out of 5 from 136 ratings. By users it sits in the top 1% of Communication extensions. It was updated 3 days ago.

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Is Private Grammar & Spell Checker safe? (permissions)

Private Grammar & Spell Checker asks for 2 permissions and access to 1 site pattern. One of them gives wide access:

  • tabs: See the address and title of every open tab

Permissions show what it could do, not what it does. See the full permission list.

Private Grammar & Spell Checker not working?

  • 4 of the 22 reviews posted in the last 90 days gave 1 or 2 stars.
  • It was updated in the last two weeks. A fresh update can fix a problem, or occasionally cause one.

Common fixes

  • Update Chrome and the extension
  • Turn it off and on in chrome://extensions
  • Reload the page
  • Turn other extensions off in case two clash

Still stuck? Contact the maker or try an alternative.