A grammar checker that works as you type catches mistakes at the moment they happen, before you hit send. Instead of copying text into a separate tool, you see a quiet underline under the word that's wrong, hover it, and fix it in one click.
Rewordly now does exactly that, in the text boxes and editors you already use every day.
What "as you type" checking actually means
Most people only notice a typo after they've posted the comment or sent the email. An as-you-type checker closes that gap:
- You write normally, in any text box, comment field, post editor or message composer.
- When you finish a sentence (or pause for a moment), the checker reviews it.
- Clear mistakes get underlined right where you wrote them.
- You hover the underline, see the suggestion and a short reason, and apply it with a click.
Nothing changes until you click. You stay in control of your text.
How Rewordly's live grammar check works
Rewordly is a free Chrome extension. Once it's installed, live checking is on by default.
- It checks sentences, not keystrokes. Rewordly waits until you finish a sentence or pause, so you're never interrupted mid-word.
- It flags clear mistakes only. Spelling errors, wrong verb forms, agreement problems, missing words and clearly wrong punctuation. It does not nag you about style or word choice.
- Hover to fix. Each underline opens a small card with the suggestion, a short explanation, and three options: apply, ignore, or add the word to your dictionary.
- Fix all at once. If a paragraph has several mistakes, one click fixes them all.
- Undo still works. Fixes go through the site's own editor, as if you had typed them, so formatting stays intact and Ctrl+Z (Cmd+Z) works as usual.
Here's a typical example:
She dont like apples and they goes to school.
Rewordly underlines dont and goes. Hover them and you'll see:
- dont ā doesn't (subject-verb agreement)
- goes ā go (subject-verb agreement)
Where it works
Live checking works in the text boxes and rich editors of most websites in Chrome, including:
- Reddit comments and posts
- X (Twitter) posts and replies
- Medium stories and responses
- LinkedIn posts and messages
- Support tickets, forms and web apps
It deliberately skips password fields, fields marked as email, phone or payment details, and code editors. Google Docs draws its text in a special way and isn't supported yet.
It works in your language
You don't need to pick a language. Rewordly detects the language of each sentence on its own, so you can write an English email and a Turkish or German message in the same session, and each sentence is checked with the right rules. See our guide to multilingual grammar checking for more.
Is it free?
Yes. You can try live checking right after installing, without creating an account. A free account keeps it going with a daily allowance, plus 10 rewrites and 10 on-demand grammar checks per day.
If you write all day, Rewordly Pro ($4.99/month or $49/year) removes the daily limits for live checks, rewrites and grammar checks.
What about privacy?
Rewordly only checks the field you're typing in, one sentence at a time, and only sentences that changed are sent again. It skips password and payment fields. To keep checks fast and the free plan possible, Rewordly keeps check results (the flagged words and suggestions, not your full text). You can switch live checking off in the extension popup at any time, or disable Rewordly on specific sites. Read the full privacy policy.
Live checking plus AI rewriting
Catching typos is half the job. When a sentence is correct but still doesn't sound right, select it and click Rewrite. You can make it clearer, shorter or longer, or switch the tone to formal, casual, concise or elaborate, then apply it back into the page.
Learn more about rewriting selected text and changing the tone of text.
Frequently asked questions
Does it slow down typing? No. Rewordly waits until you finish a sentence or pause, and never changes your text by itself.
Can I turn it off? Yes. Turn off "Auto grammar check" in the popup, or disable Rewordly on a site from the right-click menu.
Does it replace Grammarly? It covers the most common need, catching mistakes while you write, and adds one-click AI rewriting. See our Rewordly vs Grammarly comparison for the details.
Try Rewordly
Catch mistakes while you write, on the sites you already use. Free to start, no sign-up required.