HTML5 Gamepad Tester & Controller Drift Checker
Test buttons, sticks, dead-zones & latency online—100 % client-side.
What Is a Gamepad Checker?
A simple free gamepad tester tool designed to help diagnose controller issues. This free checker can detect joystick drift, measure input latency, and test button responsiveness without any downloads. Compatible with Xbox, PlayStation, Nintendo Switch, and PC controllers, it runs on macOS, Linux and mobile devices. Use this gamepad checker to troubleshoot problems and optimize performance, whether you're a casual gamer or an esports enthusiast.
How to use GamepadTester.uk
- To use the gamepad checker to detect issues connect a controller via USB or Bluetooth.
- Press any button – the gamepad tester will auto-detect your Gamepad.
- Move joysticks to allow the checker to build a drift heat-map, check calibration, or watch the dead-zone gauges.
- Click Start Test in Latency Tap-Test, wait for the red square, then tap a button.
- Need evidence? this gamepad checker had a downloadable CSV log from the history panel.
Drift Score
Left Stick: 0%
Right Stick: 0%
Calculated as average unintended movement (lower is better).
Controller Info
Live Input
Buttons
| # | On | Val |
|---|
Axes
| # | Val |
|---|
Latency Tap-Test
Test your controller's input lag. Press a button when the square turns red.
Last: – ms | Average: – ms | Attempts: 0
Typical latency: Wired (~10-30ms), Wireless (~30-100ms)
Input History Download CSV
| Time | Event |
|---|
Left Stick Dead-Zone
Right Stick Dead-Zone
Button Mapping
Trigger Sensitivity
Left Trigger
Right Trigger
Analog Stick Calibration
Move sticks to their full range to check calibration.
Advanced Vibration Test
Controller Health Score
Calculating...
Overall rating based on drift and latency (higher is better).
Pro Export Options
Why choose an online Gamepad tester over built-in OS tools?
Other controller panels have not changed for years. GamepadTester.uk gives you live heat-maps, CSV exports for support tickets, a latency benchmark, and it works on macOS, Linux, Steam Deck and mobile too – all without sending data anywhere. This tool will get built out over time as this is currently the first iteration. If you have any suggestions please message me! Contact details below.