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JavaScript Window Navigator

The window.navigator object contains information about the visitor's browser.

Window Navigator

The window.navigator object can be written without the window prefix.

Some examples:

  • navigator.cookieEnabled
  • navigator.appCodeName
  • navigator.platform

Browser Cookies

The cookieEnabled property returns true if cookies are enabled, otherwise false:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML =
"cookiesEnabled is " + navigator.cookieEnabled;
</script>

Browser Application Name

The appName property returns the application name of the browser:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML =
"navigator.appName is " + navigator.appName;
</script>

Warning

This property is removed (deprecated) in the latest web standard.

Most browsers (IE11, Chrome, Firefox, Safari) returns Netscape as appName.

Browser Application Code Name

The appCodeName property returns the application code name of the browser:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML =
"navigator.appCodeName is " + navigator.appCodeName;
</script>

Warning

This property is removed (deprecated) in the latest web standard.

Most browsers (IE11, Chrome, Firefox, Safari, Opera) returns Mozilla as appCodeName.

The Browser Engine

The product property returns the product name of the browser engine:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML =
"navigator.product is " + navigator.product;
</script>

Warning

This property is removed (deprecated) in the latest web standard.

Most browsers returns Gecko as product.

The Browser Version

The appVersion property returns version information about the browser:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = navigator.appVersion;
</script>

The Browser Agent

The userAgent property returns the user-agent header sent by the browser to the server:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = navigator.userAgent;
</script>

Warning

The information from the navigator object can often be misleading.

The navigator object should not be used to detect browser versions because:

  • Different browsers can use the same name
  • The navigator data can be changed by the browser owner
  • Some browsers misidentify themselves to bypass site tests
  • Browsers cannot report new operating systems, released later than the browser

The Browser Platform

The platform property returns the browser platform (operating system):

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = navigator.platform;
</script>

The Browser Language

The language property returns the browser's language:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = navigator.language;
</script>

Is The Browser Online?

The onLine property returns true if the browser is online:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = navigator.onLine;
</script>

Is Java Enabled?

The javaEnabled() method returns true if is enabled:

Example

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = navigator.javaEnabled();
</script>

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