Why doesn't my controller show up?

Browsers hide a gamepad from web pages until it sends its first input, so connect it by USB or Bluetooth and press any button or move a stick. If nothing appears, reconnect it, make sure it is paired at the system level, and close other programs or tabs that may be holding it. Then press a button again.

What does "standard" mapping mean?

It means the browser recognises the controller as the standard gamepad layout with 17 named buttons, such as A, B, X, Y, the shoulder buttons, triggers, D-pad and Home, plus four axes for the two sticks. If the mapping is not standard, the tester lists numbered buttons and axes and guesses that axes 0 and 1 are one stick and axes 2 and 3 the other.

How is stick drift measured?

When a stick has stayed within 0.01 on either axis for its latest 30 to 45 readings (about half a second to three quarters of a second at 60 readings per second), and sits within 0.5 of the centre, the tester averages those readings. Its distance from the centre is shown as a percentage of full travel. Under 5% is labelled normal, 5% to under 15% slight drift, and 15% or more noticeable drift. This is an indication, not a diagnosis, since games often apply their own dead zone.

Why is there no "Test vibration" button?

The button only appears when your browser reports a vibration actuator for that controller. Support depends on the browser, the controller and how it is connected, so a controller that rumbles in a game may still show no button here. When it does appear, the button plays a 0.8 second rumble with both motors.

Does it work on a phone, and is my input uploaded?

It is built for desktop Chrome, Edge and Firefox, and controller support on phones and tablets varies. Nothing is uploaded: button and stick values are read in the open tab, shown on screen and discarded when you close it.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install.

🎮

Free Gamepad Tester

Test a game controller in your browser: see every button, stick and trigger live, check stick drift, and try the vibration motors.

Runs in your browserNo sign-up, no pop-upsNo login requiredFree foreverLive buttons and sticksStick drift readoutVibration test

Connect a controller and press a button. Every button, trigger and stick shows live, with the exact values your browser receives.

No controller detected yet

Connect the controller by USB or Bluetooth, then press any button or move a stick. Browsers keep a controller hidden from web pages until it is used once.

Press any button to wake the controller. Browsers do not list a gamepad until it sends its first input. If it still does not appear, reconnect it, close other programs that may be using it, and press a button again.

Drift: leave a stick alone and the tester averages where it rests. Under 5% from centre is within the normal range, 5% to 15% is slight drift, and 15% or more is noticeable. Many games hide small values with a dead zone.

Made for desktop Chrome, Edge and Firefox. Controller support on phones and tablets varies by device and browser.

🎮 Controller input is read in this tab only and is never stored or uploaded.

How It Works

The page reads your controller through the browser's Gamepad API many times a second and draws what it reports.

1
Connect and wake the controller
Plug in or pair the controller, then press any button. Browsers show a gamepad to a page only after its first input.
2
Press buttons and move sticks
Each button lights up while pressed and turns green once tested, with its analog value shown. Sticks are drawn live with their numeric axis values.
3
Check for drift
Let a stick rest. After a moment the tester shows how far it sits from the centre and whether that is normal, slight or noticeable drift.
4
Try the vibration
If your browser exposes the controller's vibration motors, press "Test vibration" to play a short rumble.

Controller input is read in your browser tab only. Nothing is stored or uploaded.

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Frequently Asked Questions