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The free corrector that explains every fix.

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How it works

Proofreading with the rulebook attached.

Paste any text; a frontier-grade model checks every sentence against grammar, spelling and punctuation rules, and pins the reason to each fix.

  1. 1Paste your text

    Essays, emails, posts, homework. Pick American or British norms and your language, up to 2,000 characters.

  2. 2Get every fix marked

    Grammar, spelling, punctuation and style issues are highlighted in place, without rewriting your voice.

  3. 3Learn the rule

    Tap any highlight to see what was wrong and why. Copy the clean version when you're done.

Who uses it

Built for anyone who writes.

Students, job seekers, founders and teams: if a typo can cost you, run it through the free corrector first.

  • Students & ESL learners

    Essays, homework and exam answers checked with the rule explained, so the mistake sticks less next time.

  • Job seekers

    CVs, cover letters and LinkedIn messages. Hiring managers notice the difference between its and it's.

  • Founders & marketers

    Landing pages, cold emails and posts that read clean in 30 languages, American or British.

  • Support teams

    Help-center articles and macros your customers can parse on the first read.

  • Agencies & freelancers

    Deliver copy with every fix justified, ready to show clients without a second tool.

  • Non-native professionals

    Write confidently in English, German, French or Japanese and let the corrector catch what you miss.

Corrector FAQ

Is this grammar checker really free?

Yes. Paste your text, get every fix with an explanation, copy the result. No signup. You get 3 free uses across all four tools per IP address. This allowance does not renew.

American or British English?

Pick your norm above the input. The corrector adjusts spelling and punctuation rules, from colour/color to quotation style.

Which languages are supported?

30 languages, from English, Turkish and German to Japanese, Korean, Arabic and Hindi. Grammar rules follow each language, not just English.

Will it rewrite my style?

No. It fixes what is broken and leaves your voice alone. Style highlights only flag phrasing a native speaker would stumble on.

How long can my text be?

Up to 2,000 characters per run. Longer pieces work best checked section by section.