W3cubDocs

/DOM

navigator.oscpu

Returns a string that identifies the current operating system.

Syntax

oscpuInfo = window.navigator.oscpu 
  • oscpuInfo is a string that takes the following form:
Operating system oscpuInfo string format
OS/2 OS/2 Warp x (either 3, 4 or 4.5)
Windows CE WindowsCE x.y1
Windows 64-bit (64-bit build) Windows NT x.y; Win64; x64
Windows 64-bit (32-bit build) Windows NT x.y; WOW64
Windows 32-bit Windows NT x.y
Mac OS X (PPC build) PPC Mac OS X x.y
Mac OS X (i386/x64 build) Intel Mac OS X x.y
Linux 64-bit (32-bit build) Output of uname -s plus "i686 on x86_64"
Linux Output of uname -sm

1x.y refers to the version of the operating system

Example

function osInfo() { 
  alert(window.navigator.oscpu); 
}
// returns: "Windows NT 6.0" for example

Notes

Unless your code is privileged (chrome or at least has the UniversalBrowserRead privilege), it may get the value of the general.oscpu.override preference instead of the true platform.

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'NavigatorID: oscpu' in that specification.
Living Standard Initial definition

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support No ? Yes ? ? ?
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support No No ? Yes ? ? ?

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/navigator/oscpu