Navigator: userAgentData property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

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

The userAgentData read-only property of the Navigator interface returns a NavigatorUAData object which can be used to access the User-Agent Client Hints API.

Value

A NavigatorUAData object.

Examples

The following example prints the value of NavigatorUAData.brands to the console.

js
console.log(navigator.userAgentData.brands);

Specifications

Specification
User-Agent Client Hints
# dom-navigatorua-useragentdata

Browser compatibility

desktop mobile server
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Node.js
userAgentData
Experimental
Chrome – Full support
Chrome 90 (Release date: 2021-04-13)
footnote Full support
Edge – Full support
Edge 90 (Release date: 2021-04-15)
footnote Full support
Firefox – No support
Firefox
footnote No support
Opera – Full support
Opera 76 (Release date: 2021-04-28)
footnote Full support
Safari – No support
Safari
footnote No support
Chrome Android – Full support
Chrome Android 90 (Release date: 2021-04-13)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 64 (Release date: 2021-05-25)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote No support
Samsung Internet – Full support
Samsung Internet 15 (Release date: 2021-08-13)
footnote Full support
WebView Android – Full support
WebView Android 119 (Release date: 2023-10-31)
footnote
footnote See bug 40609350
WebView on iOS – No support
WebView on iOS
footnote No support
Node.js – No support
Node.js
footnote No support
Secure context required
Experimental
Chrome – Full support
Chrome 90 (Release date: 2021-04-13)
footnote Full support
Edge – Full support
Edge 90 (Release date: 2021-04-15)
footnote Full support
Firefox – No support
Firefox
footnote No support
Opera – Full support
Opera 76 (Release date: 2021-04-28)
footnote Full support
Safari – No support
Safari
footnote No support
Chrome Android – Full support
Chrome Android 90 (Release date: 2021-04-13)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 64 (Release date: 2021-05-25)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote No support
Samsung Internet – Full support
Samsung Internet 15 (Release date: 2021-08-13)
footnote Full support
WebView Android – Full support
WebView Android 119 (Release date: 2023-10-31)
footnote Full support
WebView on iOS – No support
WebView on iOS
footnote No support
Node.js – No support
Node.js
footnote No support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.
See implementation notes.

See also