Use blink behavior to choose shorter or steadier eye-break intervals. 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 break need from a short on-device camera scan and compares it against an evidence-based comfort range (< 20). 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.
Generic break rules are useful, but people differ. A quick blink-based check can help you choose whether you need breaks sooner during focused screen work.
In member sessions, WorkPose can combine blink behavior with posture and fatigue signals to make break prompts more useful.