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Grammar Check

Fix the mistakes, keep your voice

A letter to the council, a note to the landlord, a post for the school group. Paste it in and get it back corrected, with a short list of what was changed, so you can see every fix.

Open Grammar Check

Free to start · works in your browser

How it works

  1. 1 Paste your text in the Input box, or drop in a PDF.
  2. 2 Press Check Grammar.
  3. 3 Read the corrected text in the Result tab, then the Analysis list underneath to see what changed.

Real examples

See what it does

What you put in, and what Grammar Check gave back. Made with the same instructions and model the tool uses in chatmodel, one try each.

What you put in

Dear Sir or Madam, I am writting to report a problem with the street light outside my house at 14 Birch Road. It have not worked since the begining of October and the street is very dark at night, specially for older residents like myself who walks there dog in the evening. I phoned the council twice but nobody have come to look at it. Could you please let me know when it will be fixed. I would be greatful for a reply. Yours faithfully, Margaret Ellis

What you get back

Dear Sir or Madam,

I am writing to report a problem with the street light outside my house at 14 Birch Road. It has not worked since the beginning of October, and the street is very dark at night, especially for older residents like myself who walk their dogs in the evening. I phoned the council twice, but nobody has come to look at it. Could you please let me know when it will be fixed? I would be grateful for a reply.

Yours faithfully, Margaret Ellis

Analysis

  • Changed "writting" to "writing".
  • Changed "It have not worked" to "It has not worked" (subject-verb agreement).
  • Changed "begining" to "beginning".
  • Added a comma after "October" for clarity.
  • Changed "specially" to "especially".
  • Changed "walks there dog" to "walk their dogs" (pronoun and verb agreement).
  • Changed "nobody have come" to "nobody has come" (subject-verb agreement).
  • Added a question mark at the end of "Could you please let me know when it will be fixed".
  • Changed "greatful" to "grateful".

Done in about 2 seconds

Try it with your own text

What people use it for

What Grammar Check does

Grammar Check works like a careful copy editor. It reads your text and fixes the mistakes: spelling, typos, punctuation, verbs in the wrong tense, and words that don’t agree (“the prices is” becomes “the prices are”).

What it doesn’t do is rewrite you. It keeps your sentences and your tone, and only changes the wording if the grammar is really broken. A friendly note stays friendly. A formal letter stays formal.

You get two things back:

  1. The corrected text, ready to copy. Headings and lists are kept as headings and lists.
  2. An Analysis list underneath, with each correction it made.

That list is the useful part. You can check that every change is right, and if you’re writing in a second language, it’s a quick way to learn what tripped you up.

It corrects in the language you wrote in. A Spanish letter comes back as a corrected Spanish letter.

Good to know

There are no settings. You paste your text, or drop a PDF, and press Check Grammar.

If your text includes a bit of code or a formula, it’s left as it is. Only the ordinary sentences get corrected.

What it won’t do

  • It won’t make the text shorter, warmer or more polished. For that, try AI Humanizer or Help Me Write.
  • It won’t check facts, dates or names. It knows grammar, not your situation.
  • It won’t translate. Use Translate for that.
  • It can occasionally “fix” something you wrote on purpose, like a local expression. The Analysis list lets you spot it and put it back.

Writing a CV? The CV guide helps with the content, and Grammar Check cleans it up at the end. See all the tools.

Open Grammar Check

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Frequently asked questions

Will it rewrite my text?

No. It fixes typos, punctuation, verb tenses and words that don't agree, and leaves your sentences alone unless the grammar is really broken. Your tone stays yours.

How do I know what it changed?

Under the corrected text there's an Analysis section with a bullet list of each correction.

Does it work in other languages?

Yes. It corrects the text in the language you wrote it in and doesn't translate it.

Can I check a PDF?

Yes. Drop the PDF into the box instead of pasting the text.

Is there anything I need to set?

No. There are no options to choose. Paste, press Check Grammar and read the result.

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