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AI Content Detector

Paste any text and instantly detect if it was written by ChatGPT, Claude, or other AI — free, private, and 100% in your browser.
10+ Signals

Analyzes sentence patterns, vocabulary, AI phrases, and more

Multi-Model

Detects ChatGPT, Claude, Gemini, and other AI writing

Instant Results

Get detailed analysis in under a second, no waiting

100% Private

Text never leaves your browser. Zero data collection

0 characters

0 words

Free AI Content Detector Online

Our AI Content Detector uses advanced linguistic heuristics to identify text generated by AI models like ChatGPT, Claude, Gemini, and others. Unlike cloud-based detectors, this tool runs entirely in your browser — your text is never uploaded, stored, or shared.

What It Analyzes

  • Sentence Uniformity: AI produces sentences of similar length; humans vary more naturally
  • AI Phrase Detection: Flags overused AI phrases like "It's important to note", "delve", "leverage"
  • Vocabulary Richness: Measures unique word usage — AI tends toward repetitive vocabulary
  • Burstiness: Humans write with natural variation; AI output is more predictable
  • Transition Overuse: AI overuses words like "Furthermore", "Moreover", "Additionally"
  • Passive Voice: AI tends to use more passive constructions than humans
  • Punctuation Variety: Human writing uses more diverse punctuation marks

Perfect For

  • Teachers checking student submissions
  • Publishers verifying article originality
  • HR teams reviewing cover letters and applications
  • Content teams auditing freelancer submissions
  • Bloggers ensuring content authenticity
  • Researchers checking paper originality

Frequently Asked Questions

Our detector analyzes 10+ linguistic signals including sentence length uniformity, vocabulary richness, common AI phrases, burstiness patterns, transition word density, and punctuation variety. AI-generated text tends to be more uniform and predictable than human writing.

Yes. The detector identifies patterns common across all major AI models including ChatGPT, Claude, Gemini, and others. It works by analyzing linguistic characteristics rather than targeting a specific model.

Our heuristic-based approach provides a probability estimate, not a definitive answer. It is most reliable on longer texts (200+ words). Heavily edited AI text or creative human writing may produce intermediate scores. Always use results as one signal among many.

No. All analysis happens 100% in your browser using JavaScript. Your text is never sent to any server, stored, or logged. Complete privacy is guaranteed.

A minimum of 50 words is required. For the most reliable results, we recommend at least 200 words. Longer texts provide more data points for the analysis algorithms.

Heavily paraphrased or manually edited AI content may score lower on detection. However, structural patterns like sentence uniformity and vocabulary richness are harder to mask without substantial rewriting.

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