Grammar Checker

Fix grammar, spelling, and punctuation in one click — without changing your wording or style. Every correction is highlighted. Free, no signup.

0 / 750 words
Paste text and click Fix Grammar to see the corrected version here.
Free, no signup. Install the extension to fix grammar anywhere you type.

How to use the grammar checker

Paste up to 750 words and click Fix Grammar. The corrected text appears on the right with every change highlighted, so you can see exactly what was fixed — and learn from it. If a sentence is already correct, it comes back untouched. Click Copy and you're done. Your text is processed and returned — never stored.

What it fixes — and what it leaves alone

The checker fixes three things: grammar (verb tenses, subject–verb agreement, articles, prepositions, word order), spelling (typos and misspelled words), and punctuation (commas, apostrophes, capitalization).

Everything else stays yours. It does not swap your words for fancier synonyms, restructure your sentences, or change your tone — that's what makes it different from a paraphrasing tool. Your voice survives the correction.

The grammar mistakes non-native writers make most

The checker catches all of these. For the deeper habits — phrasings that are grammatically fine but instantly mark text as non-native — see 12 ESL patterns native speakers never use.

Correct is not the same as natural

A grammar checker gets you to correct. It can't get you to natural — "I would like to kindly inform you that I will be absent" has zero grammar errors and still sounds like a textbook. If your text is correct but stiff, run it through the paraphrasing tool or the AI Humanizer for a rewrite with native rhythm. Grammar fixes errors; rewriting fixes style.

Fix grammar anywhere you write

Limato's Chrome extension corrects and rewrites text inline on any website — Gmail, Slack, LinkedIn, Notion. Highlight, fix, paste back. 20 free rewrites a day.

Add to Chrome — Free

Frequently asked questions

Is the grammar checker free?

Yes. Grammar checks on this page are free with a daily limit, no signup. The Limato Chrome extension gives 5 free rewrites a day without sign-in, or 20 a day with a free Google sign-in. No card required either way.

Will it change my wording or style?

No. It only corrects errors — grammar, spelling, and punctuation. Your word choice, sentence structure, and tone stay exactly as you wrote them, and correct sentences come back unchanged. If you want the wording improved too, use the paraphrasing tool instead.

What languages does it check?

Any major language — the text is corrected in the language you paste. There is a dedicated Spanish version at limato.app/es/corrector-gramatical.

How is this different from Grammarly?

Grammarly underlines issues one at a time and asks you to accept each fix. This tool corrects the whole text in one pass and highlights every change, so you review the result at a glance — no account, no browser-wide add-on. If you want fixes inline as you type, the Limato extension does that on any site.

Is my text stored?

No. Text is sent to the rewrite API, corrected, and returned — not stored, logged, or used to train models.

Grammar checker or paraphrasing tool — which one do I need?

Grammar checker when the text should stay yours and only the errors should go. Paraphrasing tool when the wording itself needs to change — clearer, more natural, differently structured.

More free tools