Gamepad Tester
Inspect connected gamepads, button presses, axes, and browser mapping using the Gamepad API.
Tests run locally in your browser. We do not upload keystrokes, pointer paths, or media.
Requires a browser with the Gamepad API. Press a button after connecting.
Important
- Browser-reported button and axis values only. Mapping gaps are not proof of a broken controller.
Connect a controller, then press any button so the browser can detect it. Values are browser-reported. Standard mapping labels are hints only — vendor-private layouts are not guaranteed.
Buttons
D-pad & triggers
L2 / LT
R2 / RT
Left stick
Right stick
Browser-reported pad state
- Session
- Ready
- Status
- Ready
- Mapping
- —
- Observed update interval
- —
- Haptic capability
- —
- Buttons pressed
- 0
- Last event
- None seen
selected pad only — not hardware Hz
How to use
- Connect a controller via USB or Bluetooth.
- Focus this tab and press any button so the browser detects the pad.
- Select among multiple pads if more than one is connected.
- Watch button highlights, axis values, and the observed update interval.
What the result means
- Button and axis values are browser-reported Gamepad API readings.
- Observed update interval is timestamp delta during rAF polling — not true hardware polling rate.
- Missing mapping or buttons can be browser/OS limits, not proof of damage.
Limitations
- Vendor-specific buttons may be unmapped.
- Haptic detection only checks API presence, not physical motors.
- Cannot report exact controller latency.
Troubleshooting
- No gamepad appears
- Press a physical button while the tab is focused. Some browsers only enumerate pads after user input.
- Axes look inverted or swapped
- Browsers expose different mappings. Compare with another browser before concluding hardware failure.
Related tools
Stick Drift Test
Observe center drift and circularity of gamepad sticks while at rest and during rotation.
Mouse Test
Check mouse buttons, hold stability, movement path, and basic wheel events using the browser Pointer Events API.
Keyboard Tester
Press keys to verify browser keydown and keyup events across Windows, Mac, compact, and full-size layouts.
FAQ
Is the update interval my controller’s Hz?
No. It is an observed browser timestamp interval, not certified hardware polling rate.