Grammar Checker: Free AI Grammar Check
Check grammar, spelling and punctuation with AI. Paste your text, see every correction highlighted with a short reason, and copy the clean version. Free, no sign-up.
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About this tool
This free grammar checker proofreads your text with AI and fixes grammar, spelling, punctuation, capitalization and agreement mistakes. Paste an email, essay, cover letter, post or report, click once, and you get the corrected text with every change highlighted, plus a short list that explains each fix. It makes the smallest changes needed, so your meaning and your voice stay yours.
How to check grammar online
- Paste or type your text in the box (up to 5,000 characters).
- Click Check grammar.
- Review the highlighted changes: removed words appear in red, new words in green, and the What was fixed list explains each one.
- Switch to Clean text and click Copy.
What the grammar checker fixes
| Mistake | Example | Correction |
|---|---|---|
| Subject and verb agreement | She go to work | She goes to work |
| Spelling | I recieved it | I received it |
| Verb tense | Yesterday we walk home | Yesterday we walked home |
| Articles and plurals | I bought three apple | I bought three apples |
| Punctuation | Its late lets go | It's late, let's go |
| Commonly confused words | Their going to win | They're going to win |
Tips for clean writing
- Check one section at a time for long documents, so the highlights stay easy to review.
- Read the reasons: they help you avoid the same mistake next time.
- Keep names and terms you are sure about; the AI is told not to change them, but you know your text best.
- Want a new style, not just fixes? Use the paraphrasing tool in Fluent or Formal mode.
Your privacy
Your text is sent over an encrypted connection to our own AI server, checked once and then discarded. We do not store it, show it to anyone or use it to train models. The grammar checker is free with a fair daily limit per visitor.
Features
- AI proofreading for grammar, spelling, punctuation and agreement
- Every change highlighted in your text: removed words in red, new words in green
- A list of fixes with a short reason for each one
- Minimal edits: your meaning, tone and formatting stay the same
- Works in English, Spanish, French, Portuguese, Hindi, Arabic, Chinese and more
- Text is processed once and never stored, free with a daily limit
Frequently asked questions
Is this grammar checker free?
Yes. You can check grammar without an account or payment. There is a fair daily limit per visitor so our AI server stays fast for everyone.
What mistakes does it find?
Grammar, spelling, punctuation, capitalization, verb tense, subject and verb agreement, articles, plurals and commonly confused words such as their, there and they're.
Will it rewrite my text?
No. It makes the smallest changes needed for the text to be correct and keeps your meaning, tone, names and formatting. For a full rewrite, use the paraphrasing tool.
How do I see what was changed?
Corrections are highlighted in your text: removed words in red and new words in green. A list below explains each fix with a short reason.
Which languages can I check?
It works in many languages, including English, Spanish, French, Portuguese, Russian, Hindi, Arabic and Chinese. The text stays in its original language.
Is my text stored?
No. It goes over an encrypted connection to our own AI server, is checked once and then discarded. It is never stored, shared or used for training.