What is an AI grammar fixer?

An AI grammar fixer uses artificial intelligence to detect and correct grammar, spelling, and punctuation mistakes in written text. Unlike basic spell-checkers that only flag individual misspelled words, an AI-powered tool understands sentence structure and context, so it can catch subtler issues like subject-verb agreement, incorrect tense, misplaced commas, and awkward phrasing - then rewrite the sentence correctly while preserving your original meaning and tone.

Tool description

This tool uses AI to find and fix grammar, spelling, and punctuation errors in your text. Paste any passage, click "Fix Grammar," and the tool returns a corrected version alongside a diff view that highlights exactly what changed. It also reports the total number of edits made, so you can quickly see how much was corrected.

Features

  • Corrects grammar, spelling, and punctuation errors in one pass
  • Side-by-side diff view that highlights every change between the original and fixed text
  • Toggle to show or hide highlighted changes for a cleaner reading experience
  • Error count showing exactly how many corrections were made
  • Download the fixed text as a .txt file

How to use

  1. Paste or type the text you want to check into the input field
  2. Click "Fix Grammar" and complete the CAPTCHA verification
  3. Review the corrected text in the output panel, with changes highlighted
  4. Toggle "Highlight errors" off if you'd prefer to read the clean corrected text without markup
  5. Download the fixed text if you need it as a file

Tips

  • Paste complete sentences or paragraphs rather than isolated fragments - full context helps the AI make more accurate corrections
  • Use the highlighted diff to learn from your mistakes, not just to copy the fixed result
  • Very long documents can be split into sections for easier review of the changes

FAQ

Does this tool rewrite my writing style, or just fix errors? It focuses on correcting grammar, spelling, and punctuation mistakes while keeping your original wording, tone, and meaning intact. If you want a full rewrite in a different style, use a paraphrasing tool instead.

What counts as an "error" in the error count? Each distinct correction the AI makes to the text - a fixed word, added punctuation mark, or corrected phrase - is counted as one error.

Can I use this for non-English text? The tool is optimized for English grammar rules, but it can process text in other languages with varying accuracy.