Korr

100% offline, privacy-first multilingual grammar

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September 14, 2026 Initial launch: Chrome extension & Windows app

Officially rolling out Korr, a fast and 100% offline multilingual grammar assistant. All linguistic checks run entirely locally on the user's device to ensure complete privacy, with zero account setup and no subscriptions required.

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Most grammar checkers send every keystroke and sensitive email to remote cloud servers. I built Korr to offer a fast, reliable multilingual writing assistant that runs entirely locally on the user's device.