Free proofreading tool - spelling, grammar, word choice, plagiarism detector
Here is an updated list of some wonderful web tools to use to detect plagiarism in your students essays and other pieces of writings.
Top 8 Plagiarism Detector Tools for Teachers ~ Educational Technology and Mobile Learning
Top 8 Plagiarism Detector Tools for Teachers
Grammarly-online proofreading tool that checks text for grammar, punctuation, and style, and features a contextual spelling checker and plagiarism detector.
Grammar & Plagiarism detector