Gamepad API · local-only diagnostics

    Online Controller Test

    Use the live tester for any browser-exposed controller. Standard mappings get familiar Xbox-style labels; other devices stay in a truthful raw-index view.

    This browser does not expose the Gamepad API.

    Use a current desktop Chrome or Edge release.

    How this test works

    1. 1Connect the controller and press a button.
    2. 2Select the device if more than one is connected.
    3. 3Press every button, rotate both sticks and pull both triggers.
    4. 4Run rest calibration and optional vibration/cadence checks.

    Result interpretation

    Coverage shows what this browser session observed. Calibrated P95 rest movement is compared with your selected deadzone; it is not a manufacturer pass/fail result.

    • System buttons may be reserved.
    • Raw mappings cannot be labelled safely.
    • No input data is uploaded.

    Troubleshooting

    01Use a current desktop Chrome or Edge release.
    02Reconnect USB or Bluetooth, then press a controller button.
    03Close games or remapping tools that may exclusively capture the controller.

    Frequently asked questions

    Why is my controller not listed?

    Many browsers expose a controller only after a button is pressed on the active page.

    Can this page repair drift?

    No. It measures browser-observed values and helps you decide what to troubleshoot next.