AI Grammar Fixer
Fix grammar, punctuation, and awkward phrasing in any text — free, unlimited, no sign-up
Paste any text — a paragraph, an email, a whole essay — and get a clean, corrected version with grammar, punctuation, and awkward phrasing fixed. Unlike basic spell-checkers, this catches mistakes that look right letter-by-letter but read wrong in context. Free, no sign-up.
Example Output
Input:
Me and my team has been working on this project since three month and we are close to finish it, their is just a few things left to figure out before we can launching it.
Output:
My team and I have been working on this project for three months, and we're close to finishing. There are just a few things left to figure out before we can launch.
Changes made:
- "Me and my team has" → "My team and I have" (subject-verb agreement + pronoun order)
- "since three month" → "for three months" (preposition + plural)
- "close to finish it" → "close to finishing" (gerund, cleaner phrasing)
- "their is" → "there are" (wrong word + singular/plural)
- "we can launching" → "we can launch" (verb form after modal)
What this tool catches
A modern AI grammar fixer does substantially more than the red-underline spell-checker you've been using since 2005. The mistakes it catches cluster into a few categories: subject-verb agreement errors that span several words ('the list of items are' should be 'is'), wrong-word errors where the word is spelled correctly but means something different ('their/there/they're'), awkward or non-native phrasing that's technically grammatical but reads wrong, tense inconsistencies across sentences, and the dangling modifiers that make sentences accidentally hilarious.
It also catches the formatting and punctuation mistakes that undermine otherwise strong writing — Oxford comma inconsistencies, comma splices, semicolons used as commas, apostrophes in the wrong places on plurals. Not everything is wrong in every context, which is why context-aware AI fixes beat rule-based grammar checkers.
How to use this tool
Fixing text with this tool is as simple as it sounds:
- Paste the text — email, paragraph, essay, document, whatever length
- Click fix. The tool returns the corrected version
- Optionally check the 'show changes' view to see exactly what was fixed and why
- Copy the result back into your document
- If you disagree with any specific fix (grammar rules have exceptions), manually revert that change — the output is a recommendation, not a mandate
When to use a grammar fixer vs a full rewrite
Not every writing problem is a grammar problem. Here's how to know which tool to reach for:
- Use the grammar fixer when the ideas and structure are fine and you just need the mechanics cleaned up — final proofread before sending
- Use the Sentence Rewriter when specific sentences are grammatically correct but sound wrong — awkward phrasing, weak word choice, unclear meaning
- Use the Paragraph Expander when paragraphs are too thin and need more supporting detail, not just fixing
- Use the Tone Changer when the text is fine but the register is wrong — too formal, too casual, wrong tone for the audience
- Don't use a grammar fixer as a first-draft tool — fix grammar after the writing is done, not during
Why use aiwriter.ai's grammar fixer
Most grammar checkers run on rules written decades ago — they miss context, they over-flag false positives, and they can't catch the subtle errors that make writing feel off even when nothing is technically wrong. This tool runs on a modern LLM that reads the whole text, understands the meaning, and corrects mistakes the same way a skilled editor would: preserving your voice, fixing what's wrong, leaving what's right alone.
No sign-up, no word limit, no content filter. Fix the grammar on anything you're writing, no matter the topic or genre.
Frequently Asked Questions
Is this grammar fixer really free?
Yes — completely free, no sign-up, no credit card, no cap on the text you can fix.
What does it fix that Word or Grammarly doesn't?
The hard stuff. Spell-checkers catch typos. Word's grammar checker catches obvious subject-verb mismatches. This tool catches the mistakes that look fine at the word level but read wrong in context — awkward phrasing, wrong prepositions, tense confusion, dangling modifiers, and the kind of non-native-speaker patterns that old grammar checkers miss entirely.
Will it change my writing style?
Only where grammar or clarity demands it. The tool is prompted to preserve voice and intent, not to rewrite sentences that are already fine. If you want more aggressive rewriting, use the Sentence Rewriter — that's the tool for style changes.
Does it work for ESL / non-native English writers?
Yes — this is actually one of the best use cases. The generator catches article mistakes (a/an/the), preposition mistakes, and idiom mistakes that are invisible to native speakers but very visible to ESL writers. Paste and fix.
Can I use it on academic papers, legal documents, or emails?
Yes — it works on any text format. For academic papers, the tool preserves scholarly tone. For legal documents, it preserves formal register. For emails, it keeps the conversational voice. Just paste and fix.
Is there a word limit?
No hard limit — paste whatever length text you need fixed. Very long documents (thousands of words) process in chunks and may take longer, but the tool handles them.
Will the fixed version be flagged by AI detectors?
AI detectors are unreliable in general. Fixing grammar doesn't inherently look 'AI' any more than running spell-check does. The safest path is to treat the tool's output as a reference, then make small human edits so the final version is indisputably yours.