Free Grammar Checker Online
No Signup Required
Instantly Check Grammar, Spelling & Punctuation
Perfect for emails, essays, and professional writing. Your text stays private in your browser.
AI Polish
Rewrite the same draft with a cleaner tone
15 free AI Polish uses each month. Sign in only when you press AI Polish.
Grammar checking stays private in your browser. AI Polish only sends text to the cloud when you ask for it.
Polished Draft
Ready to apply or copy
What Is This?
This is a free online grammar checker that requires no signup. It instantly checks spelling, grammar, and punctuation in your text. Perfect for emails, essays, and professional writing. Grammar checking stays in your browser, and AI Polish only sends text to the cloud when you request a rewrite.
How to Use
1. Type or Paste
Enter your text in the editor above. Works with emails, essays, documents—anything. No character limit for grammar checking, and no signup required unless you want AI Polish.
2. Review Errors
Errors appear highlighted in red. Click any underlined word to see why it's marked and get suggested corrections.
3. Fix & Go
Click "Apply" to fix the error instantly, or "Dismiss" if you want to keep it. Your text stays private for grammar checking, with optional cloud AI only when you ask for a rewrite.
Yes. No signup, no hidden fees. Completely free forever.
Grammar checking stays in your browser. AI Polish only sends text to the cloud when you request a rewrite.
Spelling, grammar, punctuation, word choice, and common writing mistakes.
Yes, fully responsive on phones, tablets, and all devices with a browser.
No account is needed for grammar checking. AI Polish asks you to sign in only when you request a rewrite.
No character or word limit. Check emails, essays, or entire documents.
Very accurate for common errors. Powered by advanced grammar checking algorithms.
Yes. Perfect for professional emails, reports, proposals, and business documents.
Principal vs Principle
Principal = Main or person in charge.
Principle = Rule or belief.
Tip: The principal is your pal.
Compliment vs Complement
Compliment = Praise (I like your hair).
Complement = Completes (Wine with food).
Tip: Complement completes.
Stationary vs Stationery
Stationary = Standing still (Parked car).
Stationery = Writing paper.
Tip: Stationery is for paper.
Assure vs Ensure vs Insure
Assure = Person (Tell them it's okay).
Ensure = Outcome (Make sure it happens).
Insure = Money (Financial protection).
🔤 Spelling Errors
Catches typos, misspelled words, and wrong word forms. Identifies common spelling mistakes like "recieve" instead of "receive" or "definately" instead of "definitely". Also detects doubled letters and missing letters in everyday words.
📝 Grammar Mistakes
Identifies subject-verb agreement issues, incorrect tense usage, and wrong word order. Detects problems like "He don't know" (should be "doesn't") and verb tense inconsistencies in your writing that affect clarity and professionalism.
✏️ Punctuation Issues
Finds missing or incorrect commas, apostrophes, quotation marks, and periods. Catches errors in comma placement, missing apostrophes in contractions, and improper use of semicolons. Ensures your punctuation follows standard English rules.
🎯 Word Choice Problems
Detects commonly confused words like "accept/except", "advice/advise", and "lose/loose". Identifies inappropriate formality levels for business writing and suggests better word alternatives to improve clarity and impact.
✨ Style Improvements
Highlights redundant phrases, wordy expressions, and unclear phrasing. Suggests more concise alternatives like changing "in order to" to "to" or "at this point in time" to "now". Helps make your writing more direct and professional.