AI Grammar Checker
Fix grammar, spelling, and punctuation errors instantly - multilingual support included.
Last updated: June 2026
★★★★★4.8 / 5 rating
Trusted by 1.5M+ writers
Up to 1,800 words
Text Input *
Free limit reached
That was your last free check. Sign up free to keep going.
Grammar Report
Checking your text...
—
/100
Checking...
Results will appear here once your text has been analysed.
Need a professional to polish your writing beyond grammar?
How It Works
Check Your Grammar in 2 Simple Steps
Our AI grammar checker makes error-free writing effortless. Here's how.
01
Input Your Text
Type or paste your text into the input box, or upload a Word, PDF, or text file. You can check up to 1,800 words at a time. Add sample content to try the tool instantly.
02
Click the "Check" Button
Click Check Grammar and the AI analyzes your text for grammar, spelling, and punctuation errors - giving you a writing score plus detailed corrections and explanations in the results panel.
Related Tools
Explore Our Other AI Writing Tools
Enhance every aspect of your writing with these powerful AI tools.
FAQ
Frequently Asked Questions
Everything you need to know about the AI Grammar Checker.
Grammar is crucial because it ensures clarity and precision in communication. Proper grammar helps convey ideas effectively, maintains professionalism in writing, and enhances credibility. Without proper grammar, even strong ideas can be misunderstood or dismissed.
Simply input your text into the grammar checker and click Check. It will identify and highlight any grammatical errors, spelling mistakes, and punctuation issues, providing corrections and detailed explanations for each error found.
Yes. It also analyzes spelling, punctuation, sentence structure, style, and clarity for comprehensive writing improvement across all aspects of your text.
Yes, the tool functions as an effective spell checker. It identifies and corrects spelling errors, including commonly confused words, catching mistakes other tools might miss so your writing stays error-free and professional.
Absolutely. It also serves as a punctuation checker, identifying misplaced commas, incorrect semicolons, and other common issues so your writing is clear, concise, and properly punctuated.
Yes. It works as a grammar checker for essays, assignments, research papers, blog posts, emails, and any other writing. Paste up to 1,800 words and it flags grammar, spelling, and punctuation issues with corrections and short explanations so you can learn as you fix.
No. This is a free online grammar checker that runs in your browser - nothing to install and no sign-up needed to try. Just paste your text and click Check Grammar on desktop or mobile.
Yes. The grammar checker is free with 3 checks and no sign-up needed to try. Upgrade to a premium plan for unlimited access to this and all 30+ writing tools on PerfectEssayWriter.ai.
Write Error-Free Every Time
Fix grammar, spelling, and punctuation in seconds - completely free to start.
Check Your Grammar Free →