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ToolTrove

Free Online AI Detector Checker

About Unfox

Unfox is an online tool designed to analyze written content and estimate the likelihood that it was generated by AI models such as ChatGPT, Claude, or Gemini. It provides both an overall detection score and sentence-level analysis, supporting 17 languages. The tool is intended for students, educators, content teams, and professionals who need to review essays, articles, or marketing materials for potential AI involvement. Unfox does not require sign-up for basic use and emphasizes privacy by not storing submitted content. Paid plans are available for higher usage volumes and additional features, with pricing based on word limits or unlimited access.

Best for: students, educators, content managers, SEO teams, editors, businesses handling content

Key features

  • Detects AI-generated text from multiple models including ChatGPT and Claude
  • Provides sentence-level analysis to highlight likely AI-generated sections
  • Supports detection in 17 languages
  • Offers batch detection for reviewing multiple documents
  • API access for integration into other platforms or workflows
  • Does not store content after analysis for privacy

Use cases

  • Checking student essays for possible AI-generated content
  • Reviewing marketing copy or articles before publication
  • Scanning submitted manuscripts for AI signals in editorial workflows
  • Integrating AI detection into business content review processes

Pros

  • No registration required for basic checks
  • Emphasizes privacy by discarding content after analysis

Limitations

  • Detection results are probability-based and not definitive proof of authorship
  • False positives and false negatives are possible, especially with certain writing styles

Screenshots

Unfox screenshot

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