How this test works
Polls the standard Gamepad API while this page is visible.
ObservedPrecision label
P0 browser diagnostic
Controller Test
Inspect connected gamepad buttons, triggers and axes in real time.
ObservedBrowser-nativeLocal processing
GP
Interactive test
Controller diagnostic
◆Stays on deviceNo raw hardware upload
No controller detected yet
Axis 10.000
Axis 20.000
Axis 30.000
Axis 40.000
Your data flow
Gamepad state is processed locally and identifiers are not sent to analytics.
Read the privacy overview →What this cannot prove
- Mapping and haptic support vary by browser and controller.
- A controller may require a button press before appearing.
Fix common problems
- Press a controller button to activate it.
- Reconnect USB or Bluetooth.
- Use Stick Drift Test when an axis does not center.