Controller lab
Controller deadzone preview
Preview an axis-by-axis deadzone transformation without changing the controller or game settings.
How to use this check
Connect a controller, press one of its buttons, then start. Available mappings and features depend on your browser, OS and device.
What the browser measures
Axes 0/1 and 2/3 are shown when exposed. The green circle is your preview threshold, not a hardware diagnosis. Numeric axis values appear above.
Reading the result
At threshold 0.1 an axis value of 0.05 previews as zero. Larger values are rescaled to the remaining range. This is an illustrative axial filter and may differ from a game’s radial deadzone implementation.
Why results can differ
A browser observes events exposed by your operating system. One test cannot establish whether a device is faulty. Connection, settings, focus and browser behavior can change the results.
Related checks
- Controller button and trigger test
- Controller stick drift observation
- Controller stick trajectory
- Methodology