ua-parser-js

What is ua-parser-js?

The ua-parser-js package is a utility for parsing user agent strings. It can be used to extract detailed information about the browser, engine, OS, CPU, and device from the user agent string provided by the client's browser.

What are ua-parser-js's main functionalities?

Browser Detection

This feature allows you to detect the browser name and version from the user agent string.

const UAParser = require('ua-parser-js');
const parser = new UAParser();
const browser = parser.getBrowser();
console.log(browser);

Operating System Detection

This feature enables you to determine the operating system and its version from the user agent string.

const UAParser = require('ua-parser-js');
const parser = new UAParser();
const os = parser.getOS();
console.log(os);

Device Detection

With this feature, you can identify the device type, vendor, and model from the user agent string.

const UAParser = require('ua-parser-js');
const parser = new UAParser();
const device = parser.getDevice();
console.log(device);

Engine Detection

This feature allows you to extract the layout engine name and version from the user agent string.

const UAParser = require('ua-parser-js');
const parser = new UAParser();
const engine = parser.getEngine();
console.log(engine);

CPU Architecture Detection

This feature provides information about the CPU architecture from the user agent string.

const UAParser = require('ua-parser-js');
const parser = new UAParser();
const cpu = parser.getCPU();
console.log(cpu);

Other packages similar to ua-parser-js

device

The 'device' package is another npm package that allows you to parse user agent strings to determine device type (phone, tablet, desktop, etc.). It is simpler than ua-parser-js and does not provide detailed information about browser, engine, or OS.

platform

The 'platform' package is used for parsing and interpreting user agent strings. It provides information about the operating system, browser, and device in a structured format. It is similar to ua-parser-js but has a different API and may offer different levels of detail in the results.

bowser

Bowser is a browser detection library that is similar to ua-parser-js. It focuses on identifying browser type, version, and engine. It also provides methods to check if the browser matches certain criteria, which can be useful for feature detection and browser-specific adjustments.

README

UAParser.js

A not-so-lightweight-anymore JavaScript-based User-Agent string parser. Can be used either in browser (client-side) or in node.js (server-side) environment. Also available as jQuery/Zepto plugin, Bower/Meteor package, & RequireJS/AMD module. This library aims to identify detailed type of web browser, layout engine, operating system, cpu architecture, and device type/model, entirely from user-agent string with a relatively small footprint (~11KB when minified / ~4KB gzipped). Written in vanilla JavaScript, which means it doesn't require any other library and can be used independently.

• Author : Faisal Salman <[e-mail]>
• Demo : http://faisalman.github.io/ua-parser-js
• Source : https://github.com/faisalman/ua-parser-js

Methods

• getBrowser()
  • returns { name: '', version: '' }

# Possible 'browser.name':
Amaya, Android Browser, Arora, Avant, Baidu, Blazer, Bolt, Camino, Chimera, Chrome, 
Chromium, Comodo Dragon, Conkeror, Dillo, Dolphin, Doris, Edge, Epiphany, Fennec,
Firebird, Firefox, Flock, GoBrowser, iCab, ICE Browser, IceApe, IceCat, IceDragon, 
Iceweasel, IE [Mobile], Iron, Jasmine, K-Meleon, Konqueror, Kindle, Links, 
Lunascape, Lynx, Maemo, Maxthon, Midori, Minimo, MIUI Browser, [Mobile] Safari, 
Mosaic, Mozilla, Netfront, Netscape, NetSurf, Nokia, OmniWeb, Opera [Mini/Mobi/Tablet], 
PhantomJS, Phoenix, Polaris, QQBrowser, RockMelt, Silk, Skyfire, SeaMonkey, SlimBrowser,
Swiftfox, Tizen, UCBrowser, Vivaldi, w3m, WeChat, Yandex

# 'browser.version' determined dynamically

• getDevice()
  • returns { model: '', type: '', vendor: '' }

# Possible 'device.type':
console, mobile, tablet, smarttv, wearable, embedded

# Possible 'device.vendor':
Acer, Alcatel, Amazon, Apple, Archos, Asus, BenQ, BlackBerry, Dell, GeeksPhone, 
Google, HP, HTC, Huawei, Jolla, Lenovo, LG, Meizu, Microsoft, Motorola, Nexian, 
Nintendo, Nokia, Nvidia, Ouya, Palm, Panasonic, Polytron, RIM, Samsung, Sharp, 
Siemens, Sony-Ericsson, Sprint, Xbox, ZTE

# 'device.model' determined dynamically

• getEngine()
  • returns { name: '', version: '' }

# Possible 'engine.name'
Amaya, EdgeHTML, Gecko, iCab, KHTML, Links, Lynx, NetFront, NetSurf, Presto, 
Tasman, Trident, w3m, WebKit

# 'engine.version' determined dynamically

• getOS()
  • returns { name: '', version: '' }

# Possible 'os.name'
AIX, Amiga OS, Android, Arch, Bada, BeOS, BlackBerry, CentOS, Chromium OS, Contiki,
Fedora, Firefox OS, FreeBSD, Debian, DragonFly, Gentoo, GNU, Haiku, Hurd, iOS, 
Joli, Linpus, Linux, Mac OS, Mageia, Mandriva, MeeGo, Minix, Mint, Morph OS, NetBSD, 
Nintendo, OpenBSD, OpenVMS, OS/2, Palm, PCLinuxOS, Plan9, Playstation, QNX, RedHat, 
RIM Tablet OS, RISC OS, Sailfish, Series40, Slackware, Solaris, SUSE, Symbian, Tizen, 
Ubuntu, UNIX, VectorLinux, WebOS, Windows [Phone/Mobile], Zenwalk

# 'os.version' determined dynamically

• getCPU()
  • returns { architecture: '' }

# Possible 'cpu.architecture'
68k, amd64, arm, arm64, avr, ia32, ia64, irix, irix64, mips, mips64, pa-risc, 
ppc, sparc, sparc64

• getResult()

  • returns { ua: '', browser: {}, cpu: {}, device: {}, engine: {}, os: {} }

• getUA()

  • returns UA string of current instance

• setUA(uastring)

  • set & parse UA string

Example

<!doctype html>
<html>
<head>
<script type="text/javascript" src="ua-parser.min.js"></script>
<script type="text/javascript">

	var parser = new UAParser();

    // by default it takes ua string from current browser's window.navigator.userAgent
    console.log(parser.getResult());
    /*
        /// this will print an object structured like this:
        {
            ua: "",
            browser: {
                name: "",
                version: ""
            },
            engine: {
                name: "",
                version: ""
            },
            os: {
                name: "",
                version: ""
            },
            device: {
                model: "",
                type: "",
                vendor: ""
            },
            cpu: {
                architecture: ""
            }
        }
    */

    // let's test a custom user-agent string as an example
    var uastring = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.2 (KHTML, like Gecko) Ubuntu/11.10 Chromium/15.0.874.106 Chrome/15.0.874.106 Safari/535.2";
    parser.setUA(uastring);

    var result = parser.getResult();
    // this will also produce the same result (without instantiation):
    // var result = UAParser(uastring);

    console.log(result.browser);        // {name: "Chromium", version: "15.0.874.106"}
    console.log(result.device);         // {model: undefined, type: undefined, vendor: undefined}
    console.log(result.os);             // {name: "Ubuntu", version: "11.10"}
    console.log(result.os.version);     // "11.10"
    console.log(result.engine.name);    // "WebKit"
    console.log(result.cpu.architecture);   // "amd64"

    // do some other tests
    var uastring2 = "Mozilla/5.0 (compatible; Konqueror/4.1; OpenBSD) KHTML/4.1.4 (like Gecko)";
    console.log(parser.setUA(uastring2).getBrowser().name); // "Konqueror"
    console.log(parser.getOS());                            // {name: "OpenBSD", version: undefined}
    console.log(parser.getEngine());                        // {name: "KHTML", version: "4.1.4"}

    var uastring3 = 'Mozilla/5.0 (PlayBook; U; RIM Tablet OS 1.0.0; en-US) AppleWebKit/534.11 (KHTML, like Gecko) Version/7.1.0.7 Safari/534.11';
    console.log(parser.setUA(uastring3).getDevice().model); // "PlayBook"
    console.log(parser.getOS())                             // {name: "RIM Tablet OS", version: "1.0.0"}
    console.log(parser.getBrowser().name);                  // "Safari"

</script>
</head>
<body>
</body>
</html>

Using node.js

$ npm install ua-parser-js

var http = require('http');
var parser = require('ua-parser-js');

http.createServer(function (req, res) {
    // get user-agent header
    var ua = parser(req.headers['user-agent']);
    // write the result as response
    res.end(JSON.stringify(ua, null, '  '));
})
.listen(1337, '127.0.0.1');

console.log('Server running at http://127.0.0.1:1337/');

Using requirejs

requirejs.config({
    baseUrl : 'js/lib', // path to your script directory
    paths   : {
        'ua-parser-js' : 'ua-parser.min'
    }
});

requirejs(['ua-parser-js'], function(UAParser) {
    var parser = new UAParser();
    console.log(parser.getResult());
});

Using bower

$ bower install ua-parser-js

Using meteor

$ meteor add faisalman:ua-parser-js

Using jQuery/Zepto ($.ua)

Although written in vanilla js (which means it doesn't depends on jQuery), this library will automatically detect if jQuery/Zepto is present and create $.ua object based on browser's user-agent (although in case you need, window.UAParser constructor is still present). To get/set user-agent you can use: $.ua.get() / $.ua.set(uastring).

// In browser with default user-agent: 'Mozilla/5.0 (Linux; U; Android 2.3.4; en-us; Sprint APA7373KT Build/GRJ22) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0':

// Do some tests
console.log($.ua.device);           // {vendor: "HTC", model: "Evo Shift 4G", type: "mobile"}
console.log($.ua.os);               // {name: "Android", version: "2.3.4"}
console.log($.ua.os.name);          // "Android"
console.log($.ua.get());            // "Mozilla/5.0 (Linux; U; Android 2.3.4; en-us; Sprint APA7373KT Build/GRJ22) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0"

// reset to custom user-agent
$.ua.set('Mozilla/5.0 (Linux; U; Android 3.0.1; en-us; Xoom Build/HWI69) AppleWebKit/534.13 (KHTML, like Gecko) Version/4.0 Safari/534.13');

// Test again
console.log($.ua.browser.name);     // "Safari"
console.log($.ua.engine.name);      // "Webkit"
console.log($.ua.device);           // {vendor: "Motorola", model: "Xoom", type: "tablet"}
console.log(parseInt($.ua.browser.version.split('.')[0], 10));  // 4

Extending regex patterns

• UAParser(uastring[, extensions])

Pass your own regexes to extend the limited matching rules.

// Example:
var uaString = 'MyOwnBrowser/1.3';
var myOwnRegex = [[/(myownbrowser)\/([\w\.]+)/i], [UAParser.BROWSER.NAME, UAParser.BROWSER.VERSION]];
var parser = new UAParser(uaString, { browser: myOwnRegex });
console.log(parser.getBrowser());   // {name: "MyOwnBrowser", version: "1.3"}

Development

Contribute

• Fork and clone this repository
• Make some changes as required
• Write a unit test to showcase your feature
• Run the test suites to make sure the changes you made didn't break anything

$ npm run test

• Commit and push to your own repository
• Submit a pull request to this repository under develop branch
• Profit?

Build

Build a minified & packed script

$ npm run build

License

Dual licensed under GPLv2 & MIT

Copyright © 2012-2016 Faisal Salman <[e-mail]>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.