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Home/AI Tools/AI Text Detector
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AI Text Detector

Detect if text was written by AI (ChatGPT, Gemini, Claude) or a human. Analyzes writing patterns, sentence structure, and vocabulary.

0 words

About AI Text Detector

Free online AI text detector that analyzes writing to determine if content was generated by AI models like ChatGPT, Gemini, Claude, or other large language models. Uses advanced heuristic analysis including sentence length uniformity, vocabulary diversity, transition word frequency, passive voice usage, hedge word density, and paragraph structure patterns. Provides a detailed confidence score with breakdown of each signal. Works entirely in your browser with no word limits, no signup, and complete privacy. Ideal for educators checking student work, editors verifying content originality, publishers screening submissions, and anyone who needs to distinguish AI-generated text from human writing.

Frequently Asked Questions

How does this AI text detector work?
The tool analyzes multiple writing characteristics that differ between AI and human authors. It examines sentence length uniformity (AI writes more uniform sentences), vocabulary diversity (AI tends to use a narrower range of words), transition word overuse (AI relies heavily on words like 'however' and 'furthermore'), hedge word frequency, passive voice usage, and paragraph structure consistency. Each signal produces a score, and the weighted combination gives an overall AI probability.
How accurate is this AI detector?
This tool uses heuristic analysis of writing patterns and provides a probability estimate rather than a definitive yes/no answer. It works best on texts longer than 200 words. No AI detector is 100% accurate, and results should be used as one data point alongside other evidence. The tool is most reliable for detecting unedited output from models like ChatGPT, Gemini, and Claude.
Can it detect text from ChatGPT, Gemini, and Claude?
Yes. The tool analyzes general patterns common to large language model output regardless of the specific model. ChatGPT, Gemini, Claude, and similar models share writing characteristics like sentence uniformity, overuse of transition phrases, and consistent paragraph structures that this tool detects.
Is there a word limit?
No hard limit. The tool works best with at least 100 words and becomes more accurate with longer texts (300+ words). Very short texts under 50 words may not provide enough signal for reliable detection. All processing happens in your browser, so there are no server-imposed limits.
Is my text kept private?
Absolutely. All analysis runs 100% in your browser using JavaScript. Your text is never sent to any server, never stored, and never shared. The tool works completely offline once loaded. Your content remains entirely on your device.
Can AI-generated text be edited to avoid detection?
Yes, heavily edited AI text can reduce detection signals. When a human substantially rewrites AI output, adding personal voice, varying sentence structure, and using less formulaic language, the text naturally becomes harder to classify. This tool detects patterns in unedited or lightly edited AI output most reliably.

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