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Korr - offline grammar checker, 5 languages

Chrome extension by PeekrApp · Productivity · Tools

  • Trader

A Chrome extension in Productivity · Tools with 8 users, barely installed.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 5 screenshots

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

Users
8
Rating
not rated yet
Users, last 8 days
+8
Version
0.8.1
Updated in the store
2026-09-14
Published
2026-09-07
Manifest
V3
Browser access
4 permissions

How it has moved

Users
+8 since 08.09
0-8 · 5 readings
2026-09-08: appeared in the store2026-09-13: released 0.7.22026-09-15: released 0.8.1
  1. 2026-09-080appeared in the store
  2. 2026-09-092
  3. 2026-09-103
  4. 2026-09-137released 0.7.2
  5. 2026-09-158released 0.8.1
Users
+8 since 08.09
0-8 · 5 readings
2026-09-08: appeared in the store2026-09-13: released 0.7.22026-09-15: released 0.8.1
  1. 2026-09-080appeared in the store
  2. 2026-09-092
  3. 2026-09-103
  4. 2026-09-137released 0.7.2
  5. 2026-09-158released 0.8.1

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

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Run work in a hidden page offscreen
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 0.8.1
  2. Version 0.7.2 · Asked for more permissions (4, was 3)

What changed recently

  1. Package size changed
  2. Store description rewritten
  3. Released version 0.8.1 (was 0.7.2)
Show the remaining 6
  1. Package size changed
  2. Asked for more permissions (4, was 3)
  3. Store description rewritten (90 → 102 characters)
  4. Renamed from "Korr - offline grammar checker, 4 languages" to "Korr - offline grammar checker, 5 languages"
  5. Released version 0.7.2 (was 0.7.1)
  6. Appeared in the store

The publisher

PeekrApp.

Like this one

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

  1. LinguaCheck — Multilingual Grammar Checker Describes nearly the same job, smaller audience 67 users
  2. LinguaCheck Describes nearly the same job, smaller audience 3 users (last published figure)
  3. OwlyCheck: Corrector Ortográfico y Gramatical Describes nearly the same job, smaller audience 411 users ★ 5.0
  4. HashChrome: AI-Powered Multilingual Grammar Checker Describes nearly the same job, smaller audience 64 users ★ 5.0
  5. AI Language Corrector Describes nearly the same job, smaller audience 9 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.

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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.