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
JavaScript-based user-agent parser
Get detailed type and version of web browser, layout engine, operating system, and device.
getBrowser([uastring])getDevice([uastring])getEngine([uastring])getOS([uastring])setUA(uastring)result<script type="text/javascript" src="ua-parser.js"></script>
<script type="text/javascript">
// by default it takes ua string from current browser's window.navigator
console.log(UAParser.result);
/*
/// this will print an object structured like this:
{
browser: {
name: "",
version: "",
major: ""
},
device: {
name: "",
version: ""
},
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";
UAParser.setUA(uastr);
console.log(UAParser.result.browser); // {name: "Chromium", major: "15", version: "15.0.874.106"}
console.log(UAParser.result.engine); // {name: "AppleWebKit", version: "535.2"}
console.log(UAParser.result.os); // {name: "Ubuntu", version: "11.10"}
// let's take another test please
UAParser.setUA("Mozilla/5.0 (compatible; Konqueror/4.1; OpenBSD) KHTML/4.1.4 (like Gecko)").getOS().name; // prints "OpenBSD"
</script>
var parser = require('ua-parser');
var ua1 = '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';
var ua2 = 'Midori/0.2 (X11; Linux; U; cs-cz) WebKit/531.2+';
parser.setUA(ua1).getDevice().name; // prints "PlayBook"
parser.getOS() // prints {name: "RIM Tablet OS", version: "1.0.0"}
parser.getOS(ua2) // prints {name: "Linux", version: undefined}
parser.getOS() // prints {name: "RIM Tablet OS", version: "1.0.0"}
parser.getEngine().name; // prints "AppleWebKit"
Copyright © 2012 Faisalman <fyzlman@gmail.com>
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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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