Online Controller and Gamepad Diagnostic Lab
Welcome to the online Gamepad and Controller Tester. Whether you are playing competitive games, setting up emulation, or checking a refurbished controller, this tool lets you test every button, analog stick, trigger, and vibration motor directly in your browser.
Key Diagnostic Features
- 2D Analog Stick Radar and Drift Detector: Measures deadzone precision, live X and Y coordinates, and calculates real time stick drift percentages.
- 360 Degree Joystick Circularity Benchmark: Spin your joysticks in circles to plot outer boundary accuracy and calculate your controller's average circularity error.
- Analog Trigger Gauges (LT/RT, L2/R2): Tracks linear pressure depth from 0% to 100% for racing and shooter games.
- Haptic Vibration Test: Triggers dual rumble motors to test force feedback responsiveness.
- Multi-Controller Support: Switch between up to 4 connected controllers using the player slot bar.
Our visualizer uses the native HTML5 Gamepad API to deliver real time input feedback with sub-millisecond response times.
Supported Controllers
| Controller Family | Connection Type | Features Tested |
|---|---|---|
| **Xbox Wireless / Series X | S / 360** | USB-C and Bluetooth |
| PlayStation DualSense / DualShock 4 | USB and Bluetooth | Face buttons, analog sticks, L2/R2 pressure |
| Nintendo Switch Pro and Joy-Cons | Bluetooth | Face buttons, D-pad, dual analog sticks |
| Generic USB Arcade Sticks | Direct USB | Digital switches and axis inputs |
How to Test Your Controller
- Connect your controller via USB cable or Bluetooth.
- Press any button on the controller so the browser registers the input.
- Rotate joysticks slowly 360 degrees to test circularity and stick drift.
- Pull triggers to check 0-100% linear travel depth.