Free posture check with your webcam
Sit in front of your camera for 30 seconds and get a score and one measured fact about your shoulders and head. No account, and the video stays on your device.
Your browser will ask for the camera. The video stays on this device, and the camera turns off when the check ends.
How to check your posture with your webcam
- Face the camera straight on, with your head and both shoulders in the picture. A tilted laptop or a camera off to one side changes what it sees.
- Press Start the check and allow the camera.
- Sit the way you usually do for 30 seconds. The clock starts when the camera first sees your shoulders.
- Read the score and the one fact. To compare, run it again straight after you change how you sit.
What the score means
In each frame, MoveNet, an open pose model from Google, finds your nose, eyes, ears and shoulders. The test averages what it measures over the 30 seconds and scores it like this:
- 50% Shoulder symmetry: how level your shoulders are, compared with how wide apart they are.
- 30% Shoulder angle: full marks within 3°, none at 13° or more.
- 20% Camera confidence: how sure the model is that it sees each shoulder.
The one fact is the first of these that applies: which shoulder sat higher and by how many degrees, if the difference was over 3°; whether your head was turned or angled for most of the check; or that your shoulders stayed level.
What it can't tell you
The camera sees you from the front. It can't see the curve of your back or anything else that only shows from the side. A high score means your shoulders were level and clearly visible, not that you sit well. And 30 seconds says nothing about the rest of your day.
Is this a posture assessment?
No. A posture assessment by a physiotherapist or doctor looks at your whole body and your history. This is one camera angle and a few measurements. It doesn't diagnose anything and isn't medical advice. If something hurts, talk to a doctor or physiotherapist.
Does posture cause back pain?
Less is settled than most posture advice suggests. A 2020 review of 41 systematic reviews found links between low back pain and things like spine posture and long sitting in some studies and none in others, and concluded that there is no consensus that they cause it. So a score here says nothing about whether your posture is behind any pain you have.
What health guidelines do recommend is less time sitting still: the WHO's 2020 guidelines recommend reducing sedentary time at every age, although the evidence wasn't enough to set a limit in hours.
What happens to your video
The pose model runs in your browser. Frames are not uploaded or saved, and this check sends no measurements to our server: your score exists only on this page until you leave it. Your browser downloads the model from Google's servers, so they see your IP address.
The camera turns off when the result appears, when you press stop and when you leave the tab. We count anonymous steps (page opened, camera allowed, result shown, button clicked, or why a check could not run), never your score. More in the privacy policy.
What an account adds
This check is one reading. With an account the same measurement runs while you work, saves a row of measurements about once a minute and shows you statistics and a weekly email. The free plan includes 45 minutes a month, and Pro removes the limit.