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CopyLeaks

CopyLeaks is an AI-based plagiarism detector covering 100+ languages with cross-lingual comparison across text, code, and image text, plus AI-content detection. It offers LMS integrations and an API for institutional use.

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Editor's note

Best for schools, publishers, and compliance-driven enterprises; less cost-effective for individuals with only occasional checking needs.

Verified facts

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What is CopyLeaks

CopyLeaks is an AI-based plagiarism detector covering 100+ languages with cross-lingual comparison across text, code, and image text, plus AI-content detection. It offers LMS integrations and an API for institutional use.

Key features of CopyLeaks

  • Screening student papers for plagiarism and AI generation
  • Verifying article originality before publication
  • Checking code plagiarism and license compliance with Codeleaks
  • Auditing outbound marketing and legal documents

Good for

  • Dual plagiarism and AI detection with high accuracy
  • 100+ languages with cross-lingual comparison
  • LMS integration and API for institutional rollout

Watch out

  • Paid subscription, less compelling for low-frequency individuals
  • Credit-based quotas require usage planning
  • Possible false positives, human review recommended

How to use CopyLeaks

  1. Create an account on the CopyLeaks website
  2. Choose plagiarism, AI, or combined detection
  3. Upload a document or paste text
  4. Wait for the scan and comparison
  5. Review and download the flagged report

Who CopyLeaks is for

Difficulty: Beginner

  • Screening student papers for plagiarism and AI generation
  • Verifying article originality before publication
  • Checking code plagiarism and license compliance with Codeleaks
  • Auditing outbound marketing and legal documents

FAQ

Does CopyLeaks support Chinese?

Yes. It covers over 100 languages and dialects and can compare across languages to catch translation plagiarism.

How much does CopyLeaks cost?

Billed annually, the AI Detector is $7.99/month, the Plagiarism Detector $8.99/month, and the combined plan $13.99/month, each with up to 1,200 credits and two users.

Can it detect AI-generated content?

Yes. The AI Detector identifies text from mainstream models like ChatGPT, Gemini, and Claude with a stated accuracy above 99 percent.

Sources and verification

Sources: copyleaks.com (opens in a new tab)
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