Extension Tracker

Private Grammar & Spell Checker - Harper

30,000 users Rated 4.21 from 136 ratings Last updated 7 Nov 2026

By Elijah Potter Live in the Chrome Web Store lodbfhdipoipcjmlebjbgmmgekckhpfb Search Google ↗ Last checked 8 Nov 2026, 05:51 UTC

The listing

What the Chrome Web Store shows, as of the last check

The private grammar checker for 21st Century EnglishSummary from the listing
Developer
Elijah Potter
Enhanced Safe Browsing
Trusted. What this means →
Category
Productivity › Communication
First published
30 Apr 2025
Last updated
7 Nov 2026
Version
3.1.0
Size
8.12 MiB
Minimum Chrome
88
Languages
1 language

English

Website
writewithharper.com
See Chrome Web Store page ↗ View its code or download CRX ↗
Users over time As shown on the Chrome Web Store
40K60KTracking began 27 Sep 202627 Sep4 Oct11 Oct18 Oct25 Oct1 Nov8 Nov2026-09-27: 50,000 users2026-10-03: 50,000 users2026-10-09: 60,000 users2026-10-17: 60,000 users2026-10-24: 70,000 users2026-10-27: 60,000 users2026-11-03: 30,000 users2026-11-08: 30,000 users2026-11-08: new version2026-10-27: new version2026-10-17: new version2026-10-03: new version30,00040K60KTracking began27 Sep18 Oct8 Nov2026-09-27: 50,000 users2026-10-03: 50,000 users2026-10-09: 60,000 users2026-10-17: 60,000 users2026-10-24: 70,000 users2026-10-27: 60,000 users2026-11-03: 30,000 users2026-11-08: 30,000 users2026-11-08: new version2026-10-27: new version2026-10-17: new version2026-10-03: new version30K
Average rating
4.104.2027 Sep11 Oct25 Oct8 Nov4.214.104.2027 Sep18 Oct8 Nov4.21
Number of ratings
12513013527 Sep11 Oct25 Oct8 Nov13612513013527 Sep18 Oct8 Nov136
New version One point per check. Source: the extension's public Chrome Web Store listing.
Show the numbers
CheckedUsersRatingRatings
2026-11-0830,0004.21136
2026-11-0330,0004.23134
2026-10-2760,0004.20132
2026-10-2470,0004.20132
2026-10-1760,0004.20129
2026-10-0960,0004.16128
2026-10-0350,0004.15124
2026-09-2750,0004.15124
Users, 7 days
No change
since a week ago
Users, 30 days
−30,000
-50.0%
Rank
#3,205
by users, of 292,130 extensions
In its category
#51
of 7,816 in Communication

What changed

Every change found on a check, newest first

  1. New version 3.1.0, replacing 3.0.0.

    Renamed from “Private Grammar Checker - Harper” to “Private Grammar & Spell Checker - Harper”.

  2. New version 3.0.0, replacing 2.13.0.

  3. New version 2.13.0, replacing 2.12.0.

  4. New version 2.12.0, replacing 2.11.0.

Developer history

Moves to another publisher account and new contact emails, newest first

No move to another account and no new contact email since tracking began on 27 Sep 2026.

We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →

What it can access

From the extension's manifest, in plain language

Every websiteIt can read and change your data on all the sites you visit.
Sites
  • https://writewithharper.com/*writewithharper.com
Sites where it runs scripts
  • <all_urls>Every website
  • https://docs.google.com/document/*docs.google.com
Browser features
  • storageSave settings and data in your browser
  • tabsRead the addresses and titles of your tabs

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 8 Nov 2026, 05:51 UTC; next check around 15 Nov 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Private Grammar & Spell Checker - Harper” (lodbfhdipoipcjmlebjbgmmgekckhpfb). Chrome Web Store data, last checked 2026-11-08. https://extensiontracker.com/extension/lodbfhdipoipcjmlebjbgmmgekckhpfb. Accessed 2026-11-13.
BibTeX
@misc{extensiontracker_lodbfhdipoipcjmlebjbgmmgekckhpfb,
  title   = {Private Grammar & Spell Checker - Harper (lodbfhdipoipcjmlebjbgmmgekckhpfb)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-08},
  url     = {https://extensiontracker.com/extension/lodbfhdipoipcjmlebjbgmmgekckhpfb},
  urldate = {2026-11-13}
}

The data is free to reuse under CC BY 4.0.

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