Understanding the result
Alpha, beta and gamma are orientation angles delivered by the browser as the device turns. Changing values show that orientation events are reaching the page.
Mobile checks
Gyroscope Test
Start the sensor and rotate your device gently. Alpha, beta and gamma show the orientation data this browser provides.
Alpha—°
Beta—°
Gamma—°
Values depend on browser support and sensor fusion; this page cannot certify a physical gyroscope.
How to use this tool
- Open the page on a phone.
- Tap Start and approve motion access if asked.
- Rotate the device slowly and watch the values.
Troubleshooting
- Use a phone over HTTPS, press Start, and approve motion access if the operating system asks.
- If values remain blank, check browser motion permissions and try with screen-orientation lock disabled.
Browser and device limitations
Readings can come from sensor fusion rather than a standalone gyroscope and are not calibrated for engineering or safety use.
RELATED TOOLS
All toolsKeep checking
Touch Screen TestDraw across the screen to find areas that miss touches.Open toolMulti Touch TestCount simultaneous fingers detected by your touchscreen.Open toolVibration TestTry a short vibration pattern on a supported phone.Open toolAccelerometer TestSee motion values while moving your phone.Open toolStuck Pixel FixerRun a small changing-color patch over a suspected stuck pixel.Open tool
Common questions
Why are all values blank?
Your browser may block motion sensors, need permission, or be running on a device without those readings.
What do alpha, beta and gamma mean?
They describe rotation around three axes. The reference direction and ranges can vary by browser.
Why do values change while the phone rests?
Small sensor noise and the browser's orientation calculation can make the last digits drift.