TwinStick Gaming – Gamepad Tester

TwinStick Gaming is a free online controller tester that runs in your browser. Plug in or pair a PS4, PS5, Xbox or other gamepad and instantly see analog stick drift, deadzone size, circularity error, polling rate, trigger travel, button presses and vibration. No install, no account – useful before buying a used controller, after a repair, or when diagnosing drift.