Estimate head roll from the eye line during screen work or video calls. Works with your phone camera, laptop camera, or webcam. It runs entirely in your browser and the camera feed never leaves your device.
Prop your phone at desk height for front checks, or turn it sideways for side-view posture scans. Same test, same URL, no app.
Open phone linkThis check reads your face tilt from a short on-device camera scan and compares it against an evidence-based comfort range (< 8 deg). The model maps the joints involved and averages the angle so a single fidget doesn't skew your result.
Green means you're inside the healthy range. Amber means you're drifting and it's worth a small adjustment. Coral means the angle is past the comfort line for long enough to cause strain. Your number updates live, so you can watch a fix land in real time.
One test reads one signal. If you want this checked continuously — combined with posture, eye strain and fatigue, with live nudges and a progress history — that's what Pro does. It turns a one-off number into a habit that holds.
People often tilt toward a secondary monitor, a low laptop camera, or an off-center screen during long desk sessions.
Use the tilt signal as a setup cue. If the result changes after moving your screen, camera, or chair, you have a practical adjustment to keep.
It estimates the roll angle of your eye line from visible face landmarks.
The tool needs both eye landmarks to estimate whether the eye line is level.
Center your screen and camera, then sit back and re-run the check from your normal work position.