Gamepad Tester
Test your controller's inputs in real-time. Check for stick drift, deadzones, and verify button actuation.
Waiting for Controller
Plug in a controller via USB or pair it via Bluetooth.
You must press a button on the controller for the browser to detect it.
Online Gamepad & Controller Tester: Precision Input Diagnostics
Whether you use an official Xbox Wireless Controller, Sony PlayStation DualSense, Nintendo Switch Pro Controller, or custom third-party gamepad, controllers undergo severe mechanical stress during gaming sessions. Potentiometer wear, loose trigger springs, and microswitch failure can develop silently, impacting your accuracy and competitive performance. This browser-based gamepad tester interfaces directly with the standard HTML5 Gamepad API to read raw, unadjusted input packets sent over USB or Bluetooth with sub-millisecond precision. Regular diagnostic verification ensures that your hardware operates at peak factory specifications and delivers reliable performance across gaming and professional tasks.
Diagnosing Analog Stick Drift, Circularity & Deadzones
Stick drift is the #1 controller defect, caused when resistive carbon tracks inside the analog thumbstick wear away, creating false electrical resistance readings even when the stick is centered at physical rest (0.00, 0.00). Our tool plots exact stick coordinates in real-time and visualizes circularity error percentages. If your analog crosshairs jitter or sit outside the center deadzone circle when untouched, your controller is experiencing stick drift that requires deadzone adjustments or potentiometer cleaning/replacement with Hall Effect sensors. Utilizing standardized browser benchmarks eliminates the guesswork from troubleshooting, giving you real-time data to optimize your setup without third-party software.
Analog Trigger Actuation (0% to 100%) & Button Microswitch Verification
Modern controllers feature analog Hall effect or resistive triggers (L2/R2, LT/RT) that register pressure on a continuous 0.0 to 1.0 scale, essential for throttle control in racing games and rapid fire in shooters. Our tester displays exact actuation percentages so you can ensure triggers reach 100% full depression without sticking, while every D-pad button, shoulder bumper, and face button is highlighted instantly upon actuation. Whether you are fine-tuning hardware parameters, calibrating settings, or inspecting for defects, our tools run with sub-millisecond precision directly on your device.
Frequently Asked Questions
Everything you need to know about this tool and benchmarks