Grammar Fixer

Fix grammar and spelling errors with AI

About Grammar Fixer

Grammar Fixer is a free online tool that uses OpenAI's GPT-4o mini model to correct spelling, punctuation, and grammatical errors in your writing. Paste your text and get back a fully corrected version — ideal for polishing emails, essays, or social media posts before you publish them.

How to use Grammar Fixer

1Paste or type your text directly into the input field.
2Click the 'Fix Grammar' button to send it to the AI.
3Wait a moment while the AI corrects the text.
4Review the corrected text and copy it for your own use.

Frequently Asked Questions

Is Grammar Fixer really free to use?

Yes, Grammar Fixer is free to use with no signup or subscription required.

What types of errors does Grammar Fixer detect?

It can catch spelling mistakes, punctuation errors, subject-verb agreement issues, and other common grammatical mistakes as part of rewriting your text.

Is my text private when using Grammar Fixer?

Your text is sent to OpenAI's API to generate the correction. It is not stored on our servers or shared for any purpose beyond producing your result.

Can Grammar Fixer handle multiple languages?

It works primarily with English text; results for other languages may be less reliable.

Tips & Tricks

✓For best results, paste complete sentences or paragraphs rather than single words, so the AI has context.
✓Review the corrected text before using it, since AI-generated edits can occasionally change meaning.
✓Use Grammar Fixer before submitting important documents like resumes, cover letters, or professional emails.
✓Combine Grammar Fixer with your own proofreading to catch style issues the AI might miss.