Privacy
Photos, camera frames and sensor readings are processed by JavaScript running in your browser. They are never transmitted anywhere.
Your files stay on your device
Photos, camera frames and sensor readings are processed by JavaScript running in your browser. They are never transmitted anywhere.
What is stored locally
Your unit preferences, theme, sensor calibration and saved measurements are kept in your own browser's storage so the tools remember them. Clearing your browser data removes them.
No account, no tracking
There is no sign-up, no advertising and no third-party analytics. Fonts are self-hosted, so loading a page does not contact any other service.
About these measurements
Readings are estimates taken from rendered pixels and consumer device sensors. Do not rely on them for structural engineering, surveying, manufacturing inspection, navigation, or medical decisions. Check anything safety-critical with a calibrated instrument.