Latest web development tutorials
 

Navigator userAgent Property

< Navigator Object

Example

The user-agent header sent by your browser is:

var x = "User-agent header sent: " + navigator.userAgent;

The result of x will be:

Try it Yourself »

More "Try it Yourself" examples below.

Definition and Usage

The userAgent property returns the value of the user-agent header sent by the browser to the server.

The value returned, contains information about the name, version and platform of the browser.

Note: This property is read-only.

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Property
userAgent Yes Yes Yes Yes Yes

Syntax

navigator.userAgent

Technical Details

Return Value: A String, representing the user agent string for the current browser
Examples

More Examples

Example

A demonstration of all navigator properties in one example:

var txt = "";
txt += "<p>Browser CodeName: " + navigator.appCodeName + "</p>";
txt += "<p>Browser Name: " + navigator.appName + "</p>";
txt += "<p>Browser Version: " + navigator.appVersion + "</p>";
txt += "<p>Cookies Enabled: " + navigator.cookieEnabled + "</p>";
txt += "<p>Browser Language: " + navigator.language + "</p>";
txt += "<p>Browser Online: " + navigator.onLine + "</p>";
txt += "<p>Platform: " + navigator.platform + "</p>";
txt += "<p>User-agent header: " + navigator.userAgent + "</p>";
Try it Yourself »
< Navigator Object