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.

Copyleaks - Identify potential plagiarism, uncover AI-generated content, and empower error-free writing with AI

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.

PlagScan - The Internet makes plagiarism a bigger problem than ever.

Plagramme - Our plagiarism checker recognizes paraphrased plagiarism, checks your paper against more that 14 trillion documents and lets you to edit your paper online.

Urkund - Detect and check for plagiarism with URKUND