Proofread your writing with PaperRater’s free online grammar and plagiarism checkers

You want instant gratification and so do we. Using Artificial Intelligence and Data Science, submissions are analyzed in real-time with results typically appearing 5-15 seconds after submission. PaperRater's cloud-based software digs deep into the syntax and structure of your text without the need to sign up, login, or download. You won't find another tool offering plagiarism checking, automated proofreading, grammar check, and automated scoring that can analyze your text this quickly.

The best time to receive feedback is before you turn your assignment in. Sometimes valuable feedback comes too late, which is why our automated proofreading tool can be especially helpful -- not just for detecting grammar, punctuation, and spelling errors, but also for giving helpful tips that make you a better writer. Our AI engine, Grendel, works tirelessly providing feedback that you can incorporate into your text before you pass it on for a final grade from a human. A quick AI detector check before submission gives you one final layer of confidence before it goes to a human grader.

We use this word a lot to describe our service. It's fast, free, requires no downloads or signups, and offers state-of-the-art results. Maybe this is why our grammar check tool is used by thousands of students every day in over 140 countries. If you haven't put our service to the test, give it a try now and see what all the buzz is about.