Korr

Legal notice

Last updated: 21 September 2026

Version française

Publisher of the website and the application

Hosting

The website is hosted by:

The Windows app and the browser extension are not hosted: they run entirely on the user's device. They are distributed from the website, on the Chrome Web Store (Google) and on the Microsoft Store (Microsoft).

Nature of the service

Korr is a free spelling and grammar checker. The website and the extension correct French, English, Spanish, Italian and Portuguese; the Windows app corrects French and English.

All text processing is local: it happens in the user's browser or on the user's computer. No text is sent to a server, because no correction server exists. Users can check it themselves: after the first load, they cut their connection, and correction keeps working.

Intellectual property

Korr (software, texts, logo, brand and website content) is the property of Geoffrey Giner. All rights reserved. It is free to use under the terms of use.

The only third-party component distributed is Node.js (MIT license), bundled with the Windows app to run the checker. The full text of its license ships with the app.

The accuracy measurements published on the website are released under the Creative Commons Attribution 4.0 license (CC BY 4.0): they may be reused with credit to Korr.

Third-party trademarks, logos and product names mentioned belong to their respective owners.

Personal data

Corrected text never leaves the user's device. The website uses no cookie. It measures its traffic with Vercel Web Analytics, anonymously and without cookies. The browser's local storage is used only to remember the user's preferences, which never leave the device.

Details, legal bases and users' rights are in the privacy policy.

Liability

Korr is a writing aid. Its suggestions may be incomplete or unsuited to the context: users remain solely responsible for the content they publish or send. Full conditions are in the terms of use.

Contact

For any question about the website, the application or this legal notice: contact@peekrapp.com