Controller lab

Controller stick trajectory

Draw the paths of available stick-axis pairs while slowly rotating each stick.

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

Rotate in both directions, then release. Corners, uneven paths or gaps can reflect mapping, sampling and movement. The chart shows a trajectory, not a calibrated circularity percentage or proof of mechanical wear.

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

Technical reference

Gamepad API (MDN)