Your browser captures a webcam frame into a sandboxed <video> element. We never copy it to a server — there is no upload endpoint.

MediaPipe + TensorFlow.js (running on WebAssembly + WebGL) extract pose landmarks and gaze direction directly in your tab.

From landmarks we derive simple numbers: head angle, shoulder line, distance, blink rate. The frame is discarded immediately.

We store posture and eye-health scores — never images, never video, never anything that could identify you.