Stick Center
Check whether either analog stick rests away from zero.
Use browser diagnostics to check whether a PlayStation controller shows drift, trigger range issues or deadzone symptoms before changing game settings.
ControllerTest cannot write firmware settings or recalibrate a PlayStation controller. It can show browser-visible stick center, axis movement, trigger travel and vibration capability.
Use those readings to decide whether to adjust in-game deadzone, try USB, clean the stick, run platform tools or seek repair.
Start with the symptoms that most often feel like calibration problems in games.
Check whether either analog stick rests away from zero.
Pull L2/R2 slowly and confirm smooth values across the range.
Press each button to confirm the browser sees the expected controls.