A controller tester shows, live, what your gamepad sends to the computer: every button press, how far each trigger travels and where each stick points. It runs in the browser with the standard Gamepad API, so you can check a controller in a minute without installing anything.
What’s wrong with your controller?
How to test a controller online
- ConnectPlug the controller in with a USB data cable or pair it over Bluetooth.
- Press a buttonBrowsers only show a controller after a button press.
- Check it liveEvery button, trigger and stick lights up as you use it.
- Run the checkupButtons, stick drift and vibration in order, with a report at the end.
This controller tester runs entirely in your browser using the Gamepad API, whose standard layout defines 17 buttons and 4 stick axes, so there’s nothing to install. Each test also has its own page with step-by-step fixes, from stick drift to vibration.
Controllers and browsers
| Controller | What you can test |
|---|---|
| Xbox One, Series, Elite | All tests, including impulse triggers on Windows |
| PS5 DualSense, DualSense Edge | All tests; rumble plays on the haptic actuators |
| PS4 DualShock 4 | All tests |
| Switch Pro | Buttons, sticks and latency; vibration varies by browser |
| Other gamepads | Shown by button number if the layout is non-standard |
Chrome and Edge on Windows and macOS support every test. Firefox and Safari run everything except vibration.
FAQ
How do I test my controller on PC?
Connect it with a USB cable or Bluetooth, open this page and press any button. Every button, trigger and stick shows up live. For a complete check, start the full checkup: it walks you through buttons, stick drift and vibration and ends with a report.
Why isn’t my controller detected?
Press a button first: browsers only reveal a controller after one press. Keep this tab in front, use a USB cable that carries data (charge-only cables don’t), and close apps that take exclusive control of controllers, such as remapping tools.
How do I know if my controller is broken?
Run the full checkup. A button that never lights up or counts two presses for one, a stick that rests more than 0.15 from center, or a rumble motor that stays silent at 100% over USB in Chrome all point to the hardware rather than a setting.
How do I check a used controller before buying it?
Run the full checkup. Press every button once, let go of the sticks for the drift check, then run the vibration test. It takes about two minutes and covers the faults that matter most on second-hand controllers.
Is this controller tester safe?
Yes. Everything runs in your browser with the standard Gamepad API. Nothing is installed, and checkup results are stored only in your browser. They are never uploaded.
Which browsers work?
Chrome and Edge on a computer support every test, including vibration. Firefox and Safari run the button, stick and latency tests, but usually not vibration.
Can I test a controller on my phone?
Partly. Phone browsers can often read buttons and sticks from a paired controller, but vibration usually doesn’t work. A computer gives the most complete results.