Controller Deadzone Tool
Connect a controller, press a button, select its slot and start. Move sticks, then release them. Values are those provided by the browser. Vibration depends on controller, connection and browser support.
Results
Start →
How to use this tool
Connect a controller, press a button, select its slot and start. Move sticks, then release them. Values are those provided by the browser. Vibration depends on controller, connection and browser support.
| Results | Method and units |
|---|---|
| Dead zone | 0…0.95 |
| Filtered radius | R ≤ d: 0; R > d: min(1, (R−d)/(1−d)) |
| Axes | R = √(X² + Y²) |
Example
Axes: X=0.3, Y=0.4, R=0.5 · Dead zone: 0.1 · Filtered radius: R≈0.4444, Xf≈0.2667, Yf≈0.3556
What this test can and cannot tell you
Results reflect events and signals available to your browser. Settings, permissions and device support can affect them; they do not certify that hardware is healthy or faulty.