AI Content Detector
Detect whether text was written by AI or a human. Uses statistical analysis — runs entirely in your browser.
Processed on your device — never uploaded
Paste Text to Analyze
0 words entered
Frequently Asked Questions
How does this AI content detector work?
This tool analyzes your text using six statistical indicators: word frequency uniformity (perplexity), sentence length variation (burstiness), vocabulary richness, sentence starter diversity, average sentence length, and transition word density. AI-generated text tends to be more uniform and predictable across these metrics.
Is this tool 100% accurate?
No AI detection tool is 100% accurate. This tool uses statistical heuristics that provide a probability estimate. Heavily edited AI text or very formulaic human writing can produce false results. Use the results as one signal among many, not as definitive proof.
Is my text uploaded to a server?
No. All analysis runs entirely in your browser using JavaScript. Your text never leaves your device. There are no API calls, no server processing, and no data storage.
Why is a minimum of 50 words required?
Statistical analysis needs a sufficient sample size to produce meaningful results. With fewer than 50 words, metrics like sentence length variance and vocabulary richness cannot be reliably calculated, leading to inaccurate scores.