ua-parser-js
Advanced tools
Package description
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.
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);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.
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 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
Lightweight JavaScript-based User-Agent string parser
Extract detailed type of web browser, layout engine, operating system, and device purely from user-agent string.
getBrowser()getDevice()getEngine()getOS()getResult()getUA()setUA(uastring)<script type="text/javascript" src="ua-parser.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:
{
browser: {
name: "",
version: "",
major: ""
},
engine: {
name: "",
version: ""
},
os: {
name: "",
version: ""
},
device: {
name: "",
version: ""
}
}
*/
// let's test a custom user-agent string as an example
var uastr = "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(uastr);
console.log(parser.getResult().browser); // {name: "Chromium", major: "15", version: "15.0.874.106"}
console.log(parser.getResult().engine); // {name: "AppleWebKit", version: "535.2"}
console.log(parser.getResult().os); // {name: "Ubuntu", version: "11.10"}
// let's take another test please
console.log(parser.setUA("Mozilla/5.0 (compatible; Konqueror/4.1; OpenBSD) KHTML/4.1.4 (like Gecko)").getOS().name); // "OpenBSD"
</script>
var UAParser = require('ua-parser');
var parser = new UAParser();
var uaString = '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(uaString).getDevice().name); // "PlayBook"
console.log(parser.getOS()) // {name: "RIM Tablet OS", version: "1.0.0"}
console.log(parser.getEngine().name); // "AppleWebKit"
Copyright © 2012 Faisalman <fyzlman@gmail.com>
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.
FAQs
Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent data. Supports browser & node.js environment
The npm package ua-parser-js receives a total of 10,087,110 weekly downloads. As such, ua-parser-js popularity was classified as popular.
We found that ua-parser-js demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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