/Web APIs

MediaDeviceInfo: deviceId property

The deviceId readonly 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.


Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
deviceId 47 14 39 No 34 11 47 47 39 34 11 5.0

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