Write Lens
Grammar checker
Catch agreement errors, repeated words, a/an, and mix-ups like its/it’s while you write.
Free grammar checker Chrome extension
Write Lens is a free Chrome extension that underlines grammar, spelling, and punctuation mistakes as you type. See tone and a writing score in Gmail, comments, and most text fields. No account.
Spell checker
Underline misspellings such as recieve or seperate and replace them in one click.
Punctuation & tone
Fix extra spaces and common punctuation slips. See whether you sound formal, friendly, or urgent.
ESL & dialects
US, UK, Canadian, and Australian English. Optional Chinese checking for bilingual writers.
A writing assistant that stays in Chrome
Most writing happens in the browser: email, tickets, docs, and comments. A grammar checker Chrome extension checks the field you are in, so you do not copy text into another website.
- Install Write Lens in Chrome or Edge.
- Click any text field. A small badge appears on larger editors.
- Click an underline to replace, ignore, or add a word to your dictionary.
Spell check as you type
Write Lens runs a local spell checker first, then can send the current field to LanguageTool for deeper grammar if you keep cloud checking on. Turn it off anytime in the popup. Hide the floating button if you only want underlines.
Chrome Web Store
The public listing is being prepared. Until it is live, load the unpacked extension from the project folder. After approval, this button will open the store page.
FAQ
Is Write Lens a free grammar checker Chrome extension?
Yes. Core grammar, spelling, and punctuation checking does not require an account or payment.
Does Write Lens work in Gmail and Google Docs?
Yes. Write Lens checks most web text fields, including email, comments, tickets, and many document editors in Chrome.
Do I need an API key for the spell checker?
No. Local checking runs in the browser. Optional cloud grammar uses LanguageTool’s public API. AI drafts go to the Write Lens cloud; the model key stays on the server.
Is my writing sent to the cloud?
Only if you leave Cloud grammar check on, or if you click Generate for an AI draft. You can turn cloud checking off in the extension popup. See the privacy policy.
Does it support British English and ESL writers?
Yes. Choose US, UK, Canadian, or Australian English. Explanations are in English, which helps ESL and overseas writers.