Controller Input
Test controller buttons, analog sticks, vibration support, and drift behavior with a browser-based gamepad diagnostic tool.
How to interpret gamepad results
Stable resting stick values near center and clean button transitions usually indicate a healthy controller input path.
Small stick movement at rest can be normal, but consistent offset or noisy drift patterns usually point to wear or calibration trouble.
What to try next if the controller looks unstable
Disconnect and reconnect the controller, then compare wired versus wireless behavior before assuming permanent stick drift.
If a gaming setup feels broadly inconsistent, run the mouse and keyboard tests too so you can separate controller problems from wider USB or system issues.