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

Requiring no downloads, the proofreader and plagiarism checker use AI to scan your essays and papers for any errors and assign them an automated score. This will help you correct any grammatical and spelling mistakes, address unintentional instances of plagiarism and earn a higher grade for your work.

Simply copy and paste your writing into the online editor or upload your file and click ‘Get Report’!

Grammar and Writing Resources

Confused about what a subordinate clause is? Or baffled by the difference between traveled and travelled? Clear your doubts related to grammar, spelling and writing with these detailed articles and explanations:

• Which is Correct, ‘Laying’ or ‘Lying’?

• What are Participle Phrases and How to Use Them

• An Introduction to British Slang Words

• ‘Ax’ vs. ‘Axe’

• Lists of Adjectives Categorized by Types of Nouns

• What is the Difference Between ‘Co-Worker’ and ‘Coworker’?

• How Do You Spell ‘Separated’?

• ‘Fliers’ vs. ‘Flyers’