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Detector review · Copyleaks

Copyleaks Review

A long-standing plagiarism-detection company that added AI detection in early 2023. It emphasizes multilingual support and integrations with learning management systems.

Our take

A practical choice for multilingual settings and institutions that want detection inside their LMS.

At a glance

  • Best for: Schools and businesses that need multilingual detection and LMS integration
  • Free option: Free scans without logging in (up to 25,000 characters, per its site), more with a free account
  • Website: copyleaks.com

Main features

  • AI detection in 30+ languages (vendor claim)
  • Plagiarism detection
  • Integrations with Canvas, Moodle, Blackboard, D2L, Schoology, and others
  • Browser extension and Google Docs add-on
  • API

Strengths

  • Broad language support
  • Fits into existing school systems
  • Generous free scanning

Limits and concerns

  • Accuracy figures on its site are the vendor’s own claims
  • Like all detectors, results are estimates that need corroboration
Remember: no detector score is proof that someone used AI. How accurate are AI detectors?

Sources

Last reviewed October 2026. Features and free limits change often; check the product’s site for current details. We have no affiliate relationship with any product reviewed here.