AI Grammar Fixer

Fix all grammar, spelling, punctuation, and style errors using AI — including errors basic spell-checkers miss.

Non-native English speakers and writers polishing emails, essays, and reports.

How to use it

  1. Paste your text

    Copy the email, paragraph, or document you want corrected into the input box.

  2. Click Fix Grammar

    GPT-4o reads the full context and returns a corrected version, not just isolated word fixes.

  3. Review and copy

    Compare the original and corrected text, accept what you agree with, and copy the result.

Why use this tool?

A spell-checker only catches words that are misspelled. It sails right past the errors that actually make writing look unprofessional: a verb that disagrees with its subject, a tense that shifts mid-paragraph, a dangling modifier, a comma splice, or the wrong "its" versus "it’s". Those mistakes are easy to make and surprisingly hard to self-edit, because your brain reads what you meant rather than what you wrote. This fixer uses GPT-4o, which understands the context of a sentence rather than matching patterns, so it corrects grammar, punctuation, and clumsy phrasing that rule-based checkers miss — while preserving your voice and only rewriting where it is genuinely needed. Paste your text, click once, and compare the corrected version against the original before copying. Your text is sent over HTTPS purely for processing and is not stored. It is excellent for emails, essays, and posts; for legal or high-stakes documents, treat it as a strong first pass and still give the result a human read.

Common use cases

Non-native English writers

Catch subtle grammar and article errors that are hard to learn from rules alone but obvious to native readers.

Professionals

Polish emails, reports, and proposals so they read cleanly before they reach clients or managers.

Students

Proofread essays and assignments for the mistakes spellcheck never flags, before you submit.

Job seekers

Make sure a CV, cover letter, or LinkedIn summary is error-free where a typo could cost an interview.

Social & content

Tidy posts and captions quickly so published writing looks credible.

Frequently asked questions

Is this better than a basic spell-checker?

Yes for grammar — it understands context and fixes agreement, tense, and punctuation issues that spell-checkers and many rule-based tools miss.

Does it change my writing style?

It preserves your voice and only rewrites sentences where a correction is genuinely needed, rather than rephrasing everything.

Is my text stored?

No. It is sent over HTTPS, processed, and discarded immediately afterward.

Is there a character limit?

Up to 8,000 characters per request; run longer documents in sections.

Will it fix British or American English?

It works with both. It generally follows the spelling and conventions present in your input.

Should I still proofread the result?

Yes — for important documents, review the changes. It is a strong assistant, not a replacement for a final human check.

Can it improve clarity, not just grammar?

It focuses on correctness while keeping your style; for heavier rewording, use the AI Paraphraser.

Is it free?

Yes — it is free with no sign-up; check as many documents as you like without a word cap.

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