Grammarly - Clear, effective, mistake-free writing everywhere you type.
Turnitin - Turnitin is preferred by educational institutions around the world for preventing plagiarism. Instructors at all levels of education can request that students use the service to submit papers, and Turnitin checks those papers for plagiarism.
Cognifyd - The smart editor that helps you write business content
Unicheck - The plagiarism checker Unplag scans across the internet, repositories, open sources content and databases. It delivers real-time results and has no cached data.
Kibin - Professional Proofreading as a Service
PlagScan - The Internet makes plagiarism a bigger problem than ever.