Gamepad API
Controller discovery, buttons and axes
Compatibility / live environment
Check this browser before the hardware.
This page feature-detects the web APIs used by Keymap Labs. It does not read a device or send the result anywhere.
Runtime capability matrixChecking this browser…
CheckingRequired for controller, drift and deadzone labs
Pointer Events
Mouse movement and button delivery
Keyboard Events
Physical codes and key state
Local Storage
Device-local profile persistence
Clipboard API
Copy converted settings
File & Blob APIs
Profile JSON import/export
What a green capability means
A supported result means this browser exposes the relevant JavaScript interface in the current page context. It does not prove that a connected device will use the standard mapping, that every operating-system shortcut will reach a page or that high-rate pointer events will be delivered one by one.
Why browser results can differ
Browser version, connection security, extensions, enterprise policies and privacy settings can change which device features are available. Compare the same device in a current browser and keep the connection method unchanged when you repeat a test.
Useful compatibility reporting
When reporting a problem, include the tool URL, browser, operating system, device and connection mode, plus this matrix result. Do not send full controller identifiers, serial numbers or private keyboard input.
