This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The deviceId read-only property of the MediaDeviceInfo interface returns a string that is an identifier for the represented device and is persisted across sessions.
It is un-guessable by other applications, and unique to the origin of the calling application. It is reset when the user clears cookies. For private browsing, a different identifier is used that is not persisted across sessions.
A string.
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
deviceId |
47 | 12 | 39 | 34 | 11 | 47 | 39 | 34 | 11 | 5.0 | 47 | 11 |
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https://developer.mozilla.org/en-US/docs/Web/API/MediaDeviceInfo/deviceId