🪑 SitRight

Sit up straight. Your camera never leaves this tab.

Camera off
Click  Start camera  to begin.
Then sit up straight and hit  Calibrate .
Higher = nags you sooner when you start to slouch.
A gentle chime when your posture slips.
Re-chime every ~12s until you straighten up.
Posture score: — Not calibrated
📊 This session
0:00
Good posture
0:00
Slouching
—
Good %
0
Slouches
🔒 Your camera stays private. Posture detection runs entirely on your device using in-browser machine learning — no video, image, or posture data is ever uploaded or saved. The detection model (~5 MB) downloads once from a public CDN, then works offline. Any ads shown are served by a third-party ad network and are the only part of this page that may use cookies — see the privacy policy.