Desk work quietly costs you your neck, shoulders and back. UpSensei watches how you sit — in your browser, in real time — and says something before the ache does.
→ upsensei.eu — no install, no download, works in the browser.
- Your camera stays yours. Pose extraction runs in the browser. The video never leaves your device — it is turned into abstract skeleton coordinates on the spot, and only those are ever looked at.
- 15+ posture analyzers watch head and neck, shoulders and arms, trunk, how long you have held one position, and how long you have been at the screen at all.
- Feedback where you already are — a banner in the page, a system notification, a spoken hint, a flashing tab title. With cooldowns and severity tiers, so it nudges instead of nagging.
Not a score out of 100. Raku time is the share of your session in which no analyzer had anything to complain about — plus the plain number of minutes. It goes up when you sit better, and it means the same thing every day.
- Camera video never leaves the device. In every tier, for every user.
- Guests and free accounts are analysed entirely on-device. The posture engine runs locally in a WebAssembly sandbox; sessions are stored in your own browser. Nothing about your posture is sent anywhere.
- Paid users may opt into cloud analysis — pose coordinates only, pseudonymized, on servers in the EU — which is what buys cross-device history and full-density session replay.
- Accounts work without an email address. Passkey sign-in, no profile to fill in, nothing to leak.
Details: Trust & privacy · Privacy policy
- Session replay — scrub back through a session, see each analyzer over time, and re-run the session against different thresholds to find your own.
- Call-aware silencing — connect Microsoft Teams or Nextcloud Talk and spoken feedback holds its tongue while you are in a call.
- Guides on desk posture and screen-time habits: upsensei.eu/guides
- English, German and French, end to end — interface, voice and all.
Rolling UpSensei out as an employee-health benefit works on the same terms: no video, and no named posture reports to the employer. Talk to us.
UpSensei is a registered German sole proprietorship (Einzelunternehmen), hosted in the EU, and a member of the Microsoft AI Cloud Partner Program.
This organisation is UpSensei's public presence on GitHub — the product source is not open.
