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ToolNest AI
Free

AI Grammar Checker

Fix grammar, spelling, punctuation and clarity instantly using AI.

Toggle to get an explanation of all corrections.

Your Text

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Corrected text will appear here

Paste your text, then click Check Grammar.

Your text is processed securely and never permanently stored.

About AI Grammar Checker

Paste any text and the AI Grammar Checker instantly corrects grammar mistakes, spelling errors, punctuation issues and unclear phrasing — while preserving your original voice and intent. Toggle the Explain Corrections option to get a numbered list of every change made and why, turning the tool into a real-time writing coach. Streaming output means you see corrections as they appear. Copy the corrected text or download it with one click.

Frequently Asked Questions

It fixes grammar errors (subject-verb agreement, tense, articles, prepositions), spelling mistakes, punctuation issues (commas, apostrophes, quotation marks), and clarity problems like awkward phrasing and run-on sentences — all while preserving your original meaning and voice.

When enabled, the AI appends a numbered list after the corrected text describing every change it made and the reason. This turns the tool into a writing coach — great for learning from your mistakes rather than just accepting fixes blindly.

No. The AI only changes what needs to be changed. Correct sentences are left untouched. The goal is targeted corrections, not a full rewrite — your style and voice are preserved throughout.

Yes. The AI Grammar Checker is especially useful for non-native speakers because it catches subtle grammatical mistakes that spell-checkers miss, explains the corrections in plain English when enabled, and improves overall readability without changing the intended meaning.

Yes, completely free with no account required and no usage limits.

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