I built a browser-based Gamepad Tester to detect stick drift instantly

Hey everyone,

I built a simple tool called Gamepad Tester to quickly diagnose controller issues directly in the browser.

Most existing tools require installation or are slow to use. I wanted something lightweight that works instantly—just connect your controller and start testing.

It shows real-time input for buttons, triggers, and analog sticks, making it easy to detect issues like stick drift, dead zones, or unresponsive inputs.

I originally built this because I needed a fast way to test controllers without installing heavy software.

You can try it here:

https://devicexa.com/tools/gamepad-tester/

Would love your feedback—especially if you’ve dealt with controller issues before.