UAParser.js

The most comprehensive, compact, & up-to-date isomorphic JavaScript library to detect user's Browser, Engine, OS, CPU, and Device type/model. Runs either in browser (client-side) or node.js (server-side).

Overview

import { UAParser } from 'ua-parser-js';

// 1. Problem: 
// Imagine getting this wild user-agent string from a visitor:
const ua = `Mozilla/5.0 (Linux; Android 10; STK-LX1 
Build/HONORSTK-LX1; wv) AppleWebKit/537.36 (KHTML, 
like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile 
Safari/537.36 musical_ly_2022803040 JsSdk/1.0 
NetType/WIFI Channel/huaweiadsglobal_int 
AppName/musical_ly app_version/28.3.4 ByteLocale/en 
ByteFullLocale/en Region/IQ Spark/1.2.7-alpha.8 
AppVersion/28.3.4 PIA/1.5.11 BytedanceWebview/d8a21c6`;
// Note: this is a real user-agent (what???)

// 2. Solution:
// Just pass the complex user-agent string to `UAParser`
const parser = new UAParser(ua);

// 3. Result:
// And voila!
console.log(parser.getBrowser());
// { name : "TikTok", version : "28.3.4", major : "28", type: undefined }

console.log(parser.getCPU());
// { architecture : undefined }

console.log(parser.getEngine());
// { name : "Blink", version : "110.0.5481.153" }

console.log(parser.getDevice());
// { type : "mobile", vendor : "Huawei", model : "STK-LX1" }

console.log(parser.getOS());
// { name : "Android", version : "10" }

console.log(parser.getResult());
/*
{
    ua: "Mozilla/5.0 (Linux; Android 10; STK-LX1 Build/HONORSTK-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 musical_ly_2022803040 JsSdk/1.0 NetType/WIFI Channel/huaweiadsglobal_int AppName/musical_ly app_version/28.3.4 ByteLocale/en ByteFullLocale/en Region/IQ Spark/1.2.7-alpha.8 AppVersion/28.3.4 PIA/1.5.11 BytedanceWebview/d8a21c6",
    browser: {
        name: "TikTok",
        version: "28.3.4",
        major: "28"
    },
    cpu: {},
    device: {
        type: "mobile",
        model: "STK-LX1",
        vendor: "Huawei"
    },
    engine: {
        name: "Blink",
        version: "110.0.5481.153"
    },
    os: {
        name: "Android",
        version: "10"
    }
}
*/

// 4. Conclusion:
// The visitor is browsing from a TikTok app using an Android-powered Huawei device
// Phew! Thanks, UAParser.js!

• Live demo: https://uaparser.dev

Documentation

• v1.0: https://github.com/faisalman/ua-parser-js/tree/1.0.38#documentation
• v2.0: https://docs.uaparser.dev

Before upgrading from v0.7 / v1.0, please read CHANGELOG to see what's new & breaking.

License Options

Development

Contributors

Please read CONTRIBUTING guide first for the instruction details.

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