
Unfox
Free Online AI Detector Checker
About Unfox
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

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