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

The id property of the Credential interface returns a DOMString containing the credential's identifier. This might be any one of a GUID, username, or email address.


var id =;


A a DOMString containing the credential's identifier.


Specification Status Comment
Credential Management Level 1 Working Draft Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support51 ?60 ? ? ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5151 ? ? ? ? ?

Document Tags and Contributors

Contributors to this page: fscholz, jpmedley, david_ross, PyroLagus
Last updated by: fscholz,