Gamepad Tester

ゲームパッド検査

検証済TESTED

遊

Connect a controller, then press any button

browsers hide gamepads until the first press.

How it works

仕組み

Before blaming the game, check the controller. This tester reads your gamepad directly through the browser's Gamepad API: every button press with its analog value, both sticks on live crosshair gauges, and trigger pressure from 0.00 to 1.00. It's the quickest way to confirm a worn button, a drifting stick, or a trigger that never quite reaches full pull.

Why doesn't my controller show up?

Browsers hide gamepads until you press a button on them. That's a privacy measure, not a fault. Connect by USB or Bluetooth, press any button, and the tester appears. If nothing happens, try another port or re-pair the controller.

How do I check for stick drift?

Let go of both sticks and watch the gauges. A healthy stick settles at or very near 0.00 / 0.00. A stick that rests at 0.08 or beyond, or wanders on its own, is drifting, and games will see that as constant movement.

My buttons are labelled B0, B1… instead of A, B, X, Y.

Your controller reports a non-standard mapping, so the browser exposes raw button indices. The test still works: press each physical button and watch which index lights.