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AI Plagiarism Checkers

These tools check writing for text similarity, signs of AI generation, or both. When choosing, distinguish copied-text detection from AI detection, and compare whether you need sentence-level scores, writing-process review, or support for academic assessment.

Top picks

  1. 1

    GPTZero

    Freemium    GPTZero is best for reviewing the writing process alongside checks for AI-generated content.
  2. 2

    Turnitin

    Contact for pricing    Turnitin is best for academic assessment workflows that need both text-similarity checks and checks for AI use.
  3. 3

    AI Detector

    Freemium    AI Detector is best for examining potential AI-generated writing with sentence-level scores and multiple detectors.
  4. 4

    ZeroGPT

    Freemium    ZeroGPT is best for writers who want AI-content and plagiarism checks alongside editing and rewriting tools.

All AI Plagiarism Checkers

  • GPTZero

    AI Content Detectors

    Check text for AI-generated content and review the writing process.

    Freemium

  • Turnitin

    AI Content Detectors

    Check writing for AI use and text similarity, and support secure academic assessment.

    Contact for pricing

  • ZeroGPT

    AI Content Detectors

    Check text for AI-generated content and plagiarism, with tools for editing and rewriting.

    Freemium

  • AI Detector

    AI Content Detectors

    Check text for AI-generated writing with sentence-level scores and multiple detectors.

    Freemium