I built a tool to help gamers easily test their controllers online

I’ve often run into problems with game controllers that suddenly stop working right. Sometimes the joystick starts drifting, or a trigger doesn’t respond properly, and figuring out what’s wrong can be annoying. Most testing tools require downloads or setup, which makes a quick check harder than it should be.

That’s what gave me the idea to create a controller tester . It’s a simple browser-based tool that lets you connect your controller and see if every button, stick, and trigger works the way it should. You can check response accuracy, spot drift, or verify vibration in seconds.

I wanted something lightweight and accessible for both gamers and developers, especially for quick diagnostics before playing or repairing a controller. It saves time, removes guesswork, and helps people confirm whether the problem is with the game or the controller itself.