1. The plagiarism checker Unplag scans across the internet, repositories, open sources content and databases. It delivers real-time results and has no cached data.

  2. Smart Plagiarism Detection Technology! Professional Plagiarism Report | 20+ Features | Upload&Check Multiple Files Online | 15+ Millions Sources!

  3. 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.