How to use it
- Connect the controller by USB or Bluetooth and press any button.
- Press every button: each one lights up and is counted. Triggers should move smoothly from 0 to 100%.
- Move the sticks, then run the drift and circularity tests.
Questions and answers
How do I know if my stick has drift?
Let go of both sticks and press Test drift. Up to 5% offset at rest is normal; above 10% the stick very likely drifts in games.
Why doesn’t my controller show up?
Press a button while the page is open and in front. If it still does not appear, try another cable (many only charge), another USB port or another browser, and close apps that grab the controller such as DS4Windows or Steam Big Picture.
Does it work with PS4 and PS5 controllers?
Yes. DualShock 4 and DualSense work over USB or Bluetooth; switch the button names to PlayStation to see ×, ○, □ and △.
Is anything recorded or sent?
No. The test runs entirely in your browser; no controller data leaves your device.