Write Lens: Grammar & Spell Checker

Free grammar checker and spell checker for Chrome. Fix punctuation as you type in Gmail. Tone and writing score. No account.

Write Lens is a Chrome writing assistant that checks grammar, spelling, and punctuation while you type — in Gmail, comments, forms, and most text fields. WHAT YOU GET • Instant underlines for grammar, spelling, and punctuation • One-click replacements • Tone readout (friendly, formal, confident, and more) • Writing score, word count, and reading time • Personal dictionary and ignore • US, UK, Canadian, and Australian English • Optional cloud grammar check (LanguageTool) • AI drafts via Write Lens cloud — no API key in the extension • No account required WHO IT IS FOR Students, ESL writers, support teams, founders, and anyone who writes English in the browser. HOW IT WORKS Write Lens checks locally first, then can send the current field to LanguageTool’s public API for deeper grammar. Cloud checking can be turned off in the popup. Generate sends your prompt to the Write Lens cloud. The model API key stays on the server. PRIVACY We do not create accounts. Text is processed on your device. If cloud checking is on, that text is sent to api.languagetool.org. See the privacy policy linked on this listing. KEYBOARD SHORTCUT Alt+Shift+W opens the assistant. Write Lens focuses on correctness and tone. It does not rewrite your voice, detect plagiarism, or scan for AI-generated text.