Device & Sensors

Device orientation, sound, camera and location utilities

6 free tools — no ads, no sign-up, everything runs in your browser.

Measure surface tilt with a visual bullseye and a ±0.2° level threshold.

Read a device heading with a manual desktop simulator and magnetic interference guidance.

Track speed and distance from GPS with a Haversine fallback when speed is null.

Use a CSS pixel ruler and calibrate it against a known physical reference.

Turn the front camera into a private mirrored preview with no upload.

Estimate relative sound level from the microphone with an honest calibration disclaimer.