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

The read-only XRViewport property width specifies the width of the viewport, in pixels, onto the drawing surface the 3D scene is to be rendered into. This is defined using this property along with the viewport's height and its origin given by its properties x and y.


width = xrViewport.width;


The viewport's width in pixels.


See the main XRViewport page for examples.


Specification Status Comment
WebXR Device API
The definition of 'XRViewport.width' in that specification.
Working Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
widthChrome Full support 79Edge Full support 79Firefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android Full support 79Firefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android Full support 11.2


Full support  
Full support
No support  
No support