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Grammarly: AI Writing Assistant and Grammar Checker App

Chrome extension by Grammarly · Productivity · Communication

  • Featured
  • Established publisher
  • Trader

A Chrome extension in Productivity · Communication with 39 000 000 users, one of the largest listings in the store.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
39 000 000
Rating
4.5 (43 114 ratings)
Users, last 10 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
14.1327.0
Updated in the store
2026-09-07
Published
2012-10-22
Manifest
V3
Browser access
7 permissions, 2 site patterns

How it has moved

Users
unchanged since 31.08
39M · 6 readings
2026-09-02: released 14.1326.02026-09-07: released 14.1327.0
  1. 2026-08-3139M
  2. 2026-09-0239Mreleased 14.1326.0
  3. 2026-09-0439M
  4. 2026-09-0639M
  5. 2026-09-0739Mreleased 14.1327.0
  6. 2026-09-0939M
Rating
unchanged since 31.08
reviewsrating 4.50 · 6 readings
2026-09-02: released 14.1326.02026-09-07: released 14.1327.0
  1. 2026-08-31reviews43.1krating4.50
  2. 2026-09-02reviews43.1krating4.50released 14.1326.0
  3. 2026-09-04reviews43.1krating4.50
  4. 2026-09-06reviews43.1krating4.50
  5. 2026-09-07reviews43.1krating4.50released 14.1327.0
  6. 2026-09-09reviews43.1krating4.50
Users
unchanged since 31.08
39M · 6 readings
2026-09-02: released 14.1326.02026-09-07: released 14.1327.0
  1. 2026-08-3139M
  2. 2026-09-0239Mreleased 14.1326.0
  3. 2026-09-0439M
  4. 2026-09-0639M
  5. 2026-09-0739Mreleased 14.1327.0
  6. 2026-09-0939M
Rating
unchanged since 31.08
reviewsrating 4.50 · 6 readings
2026-09-02: released 14.1326.02026-09-07: released 14.1327.0
  1. 2026-08-31reviews43.1krating4.50
  2. 2026-09-02reviews43.1krating4.50released 14.1326.0
  3. 2026-09-04reviews43.1krating4.50
  4. 2026-09-06reviews43.1krating4.50
  5. 2026-09-07reviews43.1krating4.50released 14.1327.0
  6. 2026-09-09reviews43.1krating4.50

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • Read and change cookies on the sites it can access cookies
  • See the address and title of every tab you have open tabs
  • Sign you in with a Google account identity
Show the remaining 4
  • Run its own code on the pages it can access scripting
  • Show you notifications notifications
  • Open a panel beside the page sidePanel
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 14.1327.0
  2. Version 14.1326.0

What changed recently

  1. Package size changed
  2. Released version 14.1327.0 (was 14.1326.0)
  3. Package size changed
Show the remaining 1
  1. Released version 14.1326.0 (was 14.1325.0)

The publisher

Grammarly publishes 2 listings we track, 39.0M users between them. Listed website: grammarly.com.

  1. Superhuman Go: AI Assistant Grammarly · Productivity · Workflow · published 2026-03-31 10k users ★ 5.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. JustDone: GPT-4o AI Writing Assistant & Grammar Checker Describes nearly the same job, with a large installed audience 200k users ★ 3.7
  2. Grammar Check Pro Describes nearly the same job 0 users
  3. Grammar Flow Describes nearly the same job, smaller audience 85 users ★ 4.0
  4. Oops: Got Your Back - Grammar Checker Describes nearly the same job, smaller audience 8 users ★ 5.0
  5. SmartWrite Describes nearly the same job, smaller audience 4 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

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See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.