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USB

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The USB interface of the the WebUSB API provides attributes and methods for finding and connecting USB devices from a web page.

Properties

None.

Event handlers

USB.onconnect
An event handler called whenever a previously paired device is connected.
USB.ondisconnect
An event handler called whenever a paired device is disconnected.

Methods

USB.getDevices()
Returns a Promise that resolves with an array of USBDevice objects for paired attached devices.
USB.requestDevice()
Returns a Promise that resolves with an instance of USBDevice if the specified device is found. Calling this function triggers the user agent's pairing flow.

Specifications

Specification Status Comment
WebUSB
The definition of 'USB' in that specification.		 Draft Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 61 No No No 48 No
onconnect 61 No No No 48 No
ondisconnect 61 No No No 48 No
getDevices 61 No No No 48 No
requestDevice 61 No No No 48 No
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support No 61 No No 48 No No
onconnect No 61 No No 48 No No
ondisconnect No 61 No No 48 No No
getDevices No 61 No No 48 No No
requestDevice No 61 No No 48 No No

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https://developer.mozilla.org/en-US/docs/Web/API/USB