Ever wondered “why is my stool green?”, “what does yellow stool mean?”, or “is black stool normal?” PoopColor Decoder instantly analyses your stool shade—no uploads, 100% private—and gives you quick gut-health insights.
Supports Red • Brown • Yellow • Green • Black • Pale
Upload a photo to decode its colour…
We sample the centre pixel of your uploaded image, convert its RGB value into HSL, and match it against six colour zones (Red, Brown, Yellow, Green, Black, Pale). We then calculate a “Brown Closeness” score, flag any out-of-range hues, and provide tailored diet tips.