AI Text Detector (AI Writing Checker)

Estimate AI vs human likelihood using local text analysis.

No data stored Instant results Mobile-friendly

Calculator

AI Likelihood

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Human Likelihood

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Confidence

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Word Count

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Vocabulary Diversity

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Repetition Score

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Avg Sentence Length

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Burstiness

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Readability

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This is an estimate based on heuristics, not a definitive classification.

How it works

The detector analyzes word diversity, sentence length, repetition, and burstiness to estimate AI-likeness. It does not use external APIs and runs entirely in your browser.

FAQ

How does this AI text detector work?

It analyzes text patterns such as repetition, vocabulary diversity, and sentence structure to estimate AI-likeness.

Can AI detectors be wrong?

Yes. AI detectors provide estimates and can misclassify text, so results should be used as guidance only.

Does this tool store my text?

No. All analysis runs locally in your browser and is not uploaded.

What length of text works best?

Longer samples (200+ words) provide more reliable estimates than short snippets.