The Navigator.oscpu property returns a string that identifies the current operating system.
Syntax
oscpuInfo = navigator.oscpu
Value
A DOMString providing a string which identifies the operating system on which the browser is running.
| 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) | PowerPC Mac OS X version x.y |
| Mac OS X (i386/x64 build) | Intel Mac OS X or macOS version x.y |
| Linux 64-bit (32-bit build) | Output of uname -s plus "i686 on x86_64" |
| Linux | Output of uname -sm |
- x.y refers to the version of the operating system
Example
function osInfo() {
alert(window.navigator.oscpu);
}
osInfo(); // alerts "Windows NT 6.0" for example
Usage 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 compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.