Test your controller in the browser. Connect any gamepad over USB or Bluetooth and press a button — every button lights up, the analog sticks and triggers move live, and you get exact axis values to check for stick drift. Free, instant, nothing to install.
No controller detected — press any button on your gamepad to begin.
Controller—
Mapping—
Buttons / Axes—
Left stick
X 0.00 · Y 0.00
Right stick
X 0.00 · Y 0.00
LT
0.00
RT
0.00
How the Gamepad Tester Works
Connect your controller, press a button so the browser can see it, then check every input responds. It reads your gamepad through the browser’s Gamepad API — nothing is installed and no data leaves your device.
1
Connect & press a button
Plug in over USB or pair over Bluetooth. Browsers hide a gamepad until it sends its first input, so a single button press makes it appear.
2
Press every input
Work through each face button, bumper, trigger and the D-pad; each one lights up when pressed. Sweep both sticks to their edges and watch the dots follow.
3
Check for drift & dead buttons
At rest, sticks should read near 0.00 and triggers 0.00 — a value that won’t settle means drift. A button that never lights up is a dead switch. Also try the keyboard test.
Frequently Asked Questions
How do I test my controller in the browser?
Plug your controller in over USB or pair it over Bluetooth, open this page, then press any button. Browsers only expose a gamepad after it sends its first input, so a button press is what makes it appear. Once detected, every button lights up as you press it and the sticks and triggers move in real time. Nothing is installed and no data leaves your device.
Which controllers work with the gamepad tester?
Any controller your browser exposes through the Gamepad API works, including Xbox, PlayStation DualShock and DualSense, Nintendo Switch Pro and most third-party and USB pads. Controllers that report the standard mapping show labelled buttons like A, B, X and Y; others still work but show numbered buttons and raw axes. Chrome, Edge, Firefox and Safari all support the Gamepad API.
Why is my controller not detected?
If nothing appears, press a button or move a stick first, because the browser reveals a gamepad only after its first input. Check that the cable or Bluetooth pairing is solid, that no other app or game is holding exclusive control of the pad, and that the browser tab is focused. Some pads have a mode switch (for example DirectInput versus XInput) that changes how they are seen; try the other mode. Reconnecting the controller often fixes a pad that stopped responding.
Can I use this to check for stick drift?
Yes — leave both sticks untouched and watch the axis values. On a healthy controller they rest near 0.00; if a value drifts away from zero or the on-screen dot moves on its own, that stick has drift. The tester shows the raw axis numbers to two decimals so you can see small amounts of drift that a game might hide behind a dead zone. The same idea works for triggers, which should read 0.00 at rest and 1.00 fully pressed.
Add This Gamepad Tester to Your Website
Put the Gamepad Tester on your own page — free, no sign-up, no watermark. It runs entirely in your visitors' browsers. Copy the snippet and paste it into your page's HTML.
The credit line under the widget links back to LK Forge — please keep it so others can find it too.