Analyze a signature

Upload a clear photo of a signature. Cropped tightly works best.

SignAuth AI uses computer vision and a trained authenticity model to analyze stroke pressure, slant, baseline, letter formation, and pen lifts. Get a verdict (genuine, likely genuine, inconclusive, likely fake, fake) plus a confidence score and per-trait breakdown in seconds. Compare against any of 100+ verified celebrity, athlete, musician, and historical signatures.