FaceRuler

FaceRuler is a free browser-based face analysis tool. Upload one photo and it detects your face shape (oval, round, square, heart, diamond, oblong, triangle) and returns a 1-10 attractiveness rating, a percentile and a 10-metric geometric breakdown in seconds. Every calculation runs on-device in WebAssembly, so the photo is never uploaded to a server. There is no sign-up, no credit card and no watermark. Beyond the detector, the site ships a calculator suite (canthal tilt, facial ratios, golden ratio, jaw width), a looksmaxxing dictionary, and a public methodology page where every formula and weight is documented. It is built for anyone curious about facial proportions: people exploring the PSL and looksmaxxing vocabulary, users comparing face shapes before picking a hairstyle or glasses, and anyone who wants a quick, private self-assessment.