The machine's processor architecture.


Values of this type are strings. Possible values are:

The platform is based on arm architecture.
The platform is based on x86 32-bit architecture.
The platform is based on x86 64-bit architecture.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxOperaSafariFirefox for Android
PlatformArchChrome Full support YesEdge Full support 79Firefox Full support 45Opera Full support YesSafari Full support 14Firefox Android Full support 48


Full support  
Full support

This API is based on Chromium's chrome.runtime API. This documentation is derived from runtime.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.