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Window: navigator property - Web APIs | MDN
Window: navigator property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Window.navigator read-only property returns a
reference to the Navigator object, which has methods and properties about
the application running the script.
Value
The navigator object.
Examples
Example 1: Browser detect and return a string
js
function getBrowserName(userAgent) {
// The order matters here, and this may report false positives for unlisted browsers.
if (userAgent.includes("Firefox")) {
// "Mozilla/5.0 (X11; Linux i686; rv:104.0) Gecko/20100101 Firefox/104.0"
return "Mozilla Firefox";
} else if (userAgent.includes("SamsungBrowser")) {
// "Mozilla/5.0 (Linux; Android 9; SAMSUNG SM-G955F Build/PPR1.180610.011) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/9.4 Chrome/67.0.3396.87 Mobile Safari/537.36"
return "Samsung Internet";
} else if (userAgent.includes("Opera") || userAgent.includes("OPR")) {
// "Mozilla/5.0 (Macintosh; Intel Mac OS X 12_5_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36 OPR/90.0.4480.54"
return "Opera";
} else if (userAgent.includes("Edge")) {
// "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299"
return "Microsoft Edge (Legacy)";
} else if (userAgent.includes("Edg")) {
// "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36 Edg/104.0.1293.70"
return "Microsoft Edge (Chromium)";
} else if (userAgent.includes("Chrome")) {
// "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36"
return "Google Chrome or Chromium";
} else if (userAgent.includes("Safari")) {
// "Mozilla/5.0 (iPhone; CPU iPhone OS 15_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6 Mobile/15E148 Safari/604.1"
return "Apple Safari";
}
return "unknown";
}
const browserName = getBrowserName(navigator.userAgent);
console.log(`You are using: ${browserName}`);
Specifications
| Specification |
|---|
| HTML # dom-navigator |
Browser compatibility
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