Controller Checking
Check Every Button on Your Controller

The tester reads your controller's input using the browser's built-in Gamepad API. When you press any button, the API reports which button index was activated and its pressure value. We map those indices to a visual controller diagram so you can see exactly which button fired — instantly, with no software to install.

Browsers require you to press a button before the Gamepad API activates. Make sure your controller is connected via USB or paired over Bluetooth, then press any button. If it still doesn't appear, try a different USB port, re-pair Bluetooth, use Chrome or Edge (best support), or restart your browser.

Yes. The tool supports up to 4 controllers simultaneously. Use the Player 1–4 tabs to switch between connected pads. Each controller maintains its own independent test state, so you can compare buttons across different gamepads.

A "stuck" button is one that reports a value above zero even when you're not pressing it. This could indicate a physically stuck mechanism, debris under the button, or a hardware defect. If you see this, try cleaning around the button or contact the manufacturer for warranty support.

Yes. Pair your controller via Bluetooth to your Android or iOS device and open this page in Chrome or Safari. The Gamepad API is supported on most modern mobile browsers. Note that some older devices or browsers may have limited support.

No. Everything runs entirely in your browser. Your controller data never leaves your device — we don't collect, store, or transmit any input data. The test log and results exist only in your browser session.