5.0 on the Chrome Web Store

Fix grammar
anywhere you type.

Select text in any text box, right-click, and the corrected version replaces it in place.

Add to Chrome

The same fix, wherever you write.

Spelling, grammar and punctuation. Slang, shortcuts and tone are left alone.

  • GmailTheir going to the meeting tommorow

    They're going to the meeting tomorrow.

  • Slacklmk if their are any questions

    lmk if there are any questions

  • LinkedInCongrats on the new role, you deserved it alot

    Congrats on the new role, you deserved it a lot.

  • Messengerme and him are gonna be late

    He and I are gonna be late

  • OutlookPlease find attached the invoice for last months work

    Please find attached the invoice for last month's work.

  • FacebookHappy birthday to my bestfriend, your the best

    Happy birthday to my best friend, you're the best

  • Slackcan u send me the deck when its ready

    can u send me the deck when it's ready?

  • GmailI should of sent this earlier, sorry

    I should have sent this earlier, sorry.

  • FacebookWho's dog is this

    Whose dog is this?

  • LinkedInExcited to share that Ive accepted a offer

    Excited to share that I've accepted an offer

  • Messengerits ok no worries, see u tmrw

    It's ok, no worries, see u tmrw

  • OutlookThanks for you're patience

    Thanks for your patience.

Works where you already write

  • Gmail
  • Outlook
  • Slack
  • LinkedIn
  • Facebook
  • Messenger
  • and any ordinary text box

Three steps, about a second.

You never leave the page. The fix shows up right where you were typing.

  1. 1

    Select the text

    A sentence, a paragraph or the whole message.

  2. 2

    Right-click, or press the shortcut

    Choose Fix Grammar with AI, or press CtrlShiftE, ⌘⇧E on Mac.

  3. 3

    It replaces your selection

    A small pill shows while it works. Then the corrected text lands in place.

It kept rewriting me.

I built MrGrammar because every AI tool I tried kept rewriting me. I would paste a sentence into ChatGPT, Gemini or Claude to fix a typo and get back something polished, formal and not mine.

All I wanted was the typo fixed.

So I made a tool that does only that. It corrects spelling, grammar and punctuation and leaves your words, your tone and your sentence structure exactly as you wrote them. If it sounded like you before, it sounds like you after.

Saleep Shrestha
You wrote

hey can u send me the file when u get a sec, no rush tho

A typical AI rewrite

Hello, could you please send me the file at your earliest convenience? There is no rush.

Polite. Formal. Not you.
MrGrammar

Hey, can you send me the file when you get a sec? No rush though.

Same message. Just fixed.

Why MrGrammar?

Free to use

Install it and start fixing right away. The free service covers 10 corrections a minute and 500 a day, which is plenty for a day of email and chat.

About a second

Corrections come back fast enough that you stay in flow. Select, fix, keep writing.

Private by design

Text leaves your browser only when you ask for a correction, and it is never stored. No accounts, no cookies, no tracking of who you are.

Read the privacy policy

Any text box

Ready the moment Gmail, Outlook, Slack, LinkedIn, Facebook or Messenger loads. On every other site it only touches the page when you call it.

Keyboard first

One shortcut, no menu needed. Change it any time from the extension settings.

Open source

MIT licensed and on GitHub. Read the code, file a bug, or suggest what to build next.

Saleep24/MrGrammar

What people say.

5.0

Average of all 8 ratings on the Chrome Web Store, as of October 2026.

  • 5 stars8
  • 4 stars0
  • 3 stars0
  • 2 stars0
  • 1 star0
Read every review on the Chrome Web Store
I didn't know I needed this before I used this. Now I cannot imagine writing without this. If there was 6 stars possible, this would definitely get it.
Aditya SharmaChrome Web Store review
Wow! This extension helped me edit my emails and make my sentences smoother. It's pretty easy to install and set up a shortcut to make editing even faster in Gmail and Slack.
Brenda GarciaChrome Web Store review
It's fast. It's clean. It's ridiculously smart. The suggestions are natural and non-intrusive, and it doesn't mess with your tone or overcorrect like some other tools do. If you write anything, emails, essays, social posts, install this.
AbiralChrome Web Store review
Changed my life! I cannot even imagine my life without this tool now.
Mandip AdhikariChrome Web Store review

Frequently asked questions

Is it really free?

Yes, while MrGrammar is in early access. There is no plan to upgrade to and no key to bring. The free service allows 10 corrections a minute and 500 a day per person, which is plenty for a day of email and chat. If that ever changes, early users will hear about it first.

What does it change, and what does it leave alone?

It fixes spelling, grammar and punctuation. It does not rewrite your sentences, swap your words or change your tone.

Where does it work?

Gmail, Outlook on the web, Slack, LinkedIn messages and comments, Facebook and Messenger are supported out of the box, plus most websites with ordinary text boxes, comment fields or editors. It runs in Chrome, Edge, Brave and other Chromium browsers.

How is MrGrammar different from other grammar tools?

It only corrects. Most AI writing tools rewrite your sentence, change the tone or suggest a different word. MrGrammar fixes the spelling, grammar and punctuation and leaves everything else as you wrote it. It is also free, needs no account, and puts the fix straight into the text box you are typing in.

Is MrGrammar an AI grammar checker?

Yes. Corrections come from Google Gemini, with Groq as a backup, through a small server the project runs. The extension holds no keys and you do not need your own.

Does it work in Google Docs?

Not yet. Docs draws its text on a canvas rather than as regular page text, so there is nothing for the extension to read. You will see a short message if you try.

What happens to my text?

Nothing leaves your browser until you ask for a correction. At that moment the selected text goes over an encrypted connection to a small server, which asks Google Gemini for the correction, with Groq as a backup. Your text is never stored or logged. The server only keeps a request count per network address for up to 24 hours to enforce the free limit, and that count is never linked to any text. Full privacy policy.

Can I change the keyboard shortcut?

Yes. Open the extension popup and choose Change, or go to chrome://extensions/shortcuts and set any combination you like.

Something did not work. Where do I report it?

Open an issue on GitHub. Bug reports and feature ideas are both welcome.

Write with confidence.
Everywhere.

Installs in seconds. Ready in the next text box you open.

Add to Chrome, it's free