Korr

Web · Windows · Extension

Freedom report

Two barsScore 7.5

Free tierA free tier is on its own pricing page
Runs widely2 of 6 device platforms
DocumentedPlans, terms and facts published

Korr is ranked #18 of 88 in grammar checkers on Freedom251, made by Korr (Pont-de-Larn, France). It runs on Browser extension, Web, Windows. There is a free plan.

Korr plans and pricing

All plans

Free Free No account · No subscription · No usage limit · No paid tier korr.peekrapp.com · 11 Oct 2026

Compared on grammar checkers

Free plan: Yes
Browser extension: Yes
Desktop app: Yes
Style suggestions: Yes
Languages supported: 5

Best Korr alternatives

See all 20

Two bars LanguageTool Free tier No. 1Free8.2 One bar Grammarly Free tier No. 2$12/mo8.0 Two bars Trinka Free tier No. 3Free8.0 Two bars MerciApp Free tier No. 4€12/mo8.0 One bar Sapling Free tier No. 5$5/mo7.9 Two bars Wordvice AI Free tier No. 6$0.70/mo7.9

The record

Purpose: Korr is a spelling and grammar checker that analyzes text and suggests a corrected version.
Languages: The website and extension correct French, English, Spanish, Italian and Portuguese; the Windows app corrects French and English.
Local processing: Text is processed in the user's browser or computer and is not sent to a correction server.
Review controls: Korr lists each change in its sentence and lets users reject changes individually.
Personal dictionary: Users can keep words in a personal dictionary stored on their device, and it is not synchronized or transmitted.
Integrations: The browser extension works in Gmail, Slack and any text field; the site also names Outlook and LinkedIn.
Windows app: The Windows app corrects selected text in programs such as Word, Outlook and Discord using Ctrl+Alt+C.
Security detail: The publisher says the Windows installer runs in the user's folder without administrator rights and connects to no Internet server.
Privacy: The privacy policy says the site uses no cookies and measures traffic anonymously with Vercel Web Analytics.
Support: Support is available by email in French and English, usually within two working days.
Availability limit: The terms provide no availability commitment and say the publisher may modify, suspend or discontinue the service at any time.
Who it is for: Korr is licensed for personal or professional use.
Headquarters: Pont-de-Larn, France
Price from: Free

Where it ranks on Freedom251

Best Grammar Checkers in 2026#18 of 88

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Sources

korr.peekrapp.com/legal-notice· checked 11 Oct 2026
korr.peekrapp.com· checked 11 Oct 2026
korr.peekrapp.com/support· checked 11 Oct 2026
korr.peekrapp.com/privacy· checked 11 Oct 2026
korr.peekrapp.com/terms· checked 11 Oct 2026