What it does
You wrote an email. It reads fine in your head. Then you spot a missing comma right after you hit send. Sound familiar?
The Grammar Checker reads your text and hands back a clean version with the grammar, spelling, and punctuation sorted out. It fixes the actual mistakes. It doesn’t rewrite your sentences to sound like a press release. Your phrasing, your rhythm, the slightly weird way you start half your sentences: all of that stays. A run-on gets split, a “their” that should be “they’re” gets swapped, a stray apostrophe disappears. The bones of what you wrote don’t move.
There’s a second half to the output, and honestly it’s the useful part. Below the corrected text you get a short bullet list of what changed and why. Not just “fixed grammar.” Actual items like changed “effects” to “affects” or added comma before “but”. So you learn the pattern instead of blindly trusting a black box.
How to use it
Three steps, no settings to fiddle with.
- Paste your text into the box on the left. An email, a paragraph, a whole essay.
- Click Check Grammar.
- Read the corrected version on the right, plus the list of fixes underneath.
Copy the result with one button or download it as a text file. That’s the whole loop.
Quick honesty note on how this works: your text gets sent to a server where a language model (think Gemini Flash Lite tier) does the actual checking, then the result comes back to your screen. It’s not running on your own machine. For a private journal entry or anything truly sensitive, that’s worth knowing before you paste.
Why it leaves your voice alone
Most grammar tools have a habit. You feed them a casual sentence and they hand back something stiff and “professional” that you’d never actually say. Fragments get joined. Contractions get expanded. Your one good joke gets flattened.
This one’s tuned the other way. The instruction it follows is narrow on purpose: correct errors, change nothing else. If you write the way real people write, with contractions and the occasional one-word sentence, it respects that. The goal is a clean copy that still sounds like you on a good day. Not you cosplaying a corporate memo.
When it earns its keep
- That cover letter where a typo could cost you an interview
- Non-native English writers who want to catch the small stuff before a native speaker does
- Students proofreading an essay at 1am when their eyes have stopped working
- Anyone firing off a Slack message to the whole company and wanting it right the first time
- Quick check on a tweet or LinkedIn post before it’s public forever
Need to shorten something instead? The Article Summarizer trims long text. Writing from scratch? The Blog Outline Generator gets you started.
Questions people ask
Does it change my writing style?
No, and that’s the point. It targets grammar, spelling, and punctuation only. Your tone, word choices, and sentence structure stay put unless they’re genuinely broken.
Will it explain the corrections?
Yes. Every run includes a bullet list of the specific fixes, like a swapped word or an added comma. You see what moved and why, not just a cleaned-up blob.
How long can my text be?
A few thousand words is comfortable. For a 20-page document, paste it in chunks so nothing gets trimmed at the end.
Is it perfect?
Close, but no. AI catches the vast majority of real errors, though it can occasionally miss a subtle one or “fix” something that was fine. Skim the list before you trust it blindly.
Does it work for British and American English?
It follows whatever spelling pattern your text already uses. Write “colour” throughout and it won’t switch you to “color” out of nowhere.
What does it cost?
Nothing. Check as much text as you want, no account, no daily cap.