UAParser.js - Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client-Hints data using JavaScript. Supports browser & node.js environment. Available as jQuery plugin & @types-ready for TypeScript.

DEMO : A USER-AGENT PLAYGROUND

{UAParser.js} abstracts away the hassle of User-Agent detection by turning them into a set of simple & meaningful data. As an example, this is what we get from your browser's User-Agent information:

In addition with some browser-supplied data, {UAParser.js} will transforms it into a well-structured format:

Browser

Engine

OS

Type

Model

CPU

TRY MORE EXAMPLES

DETECT GPU FROM WEBGL DATA (EXPERIMENTAL FEATURE)

GPU

FEATURES: WHEN LESS IS MORE

User-Agent string as of today is a mess. On the other hand, there is no reliable way to identify user details.

{UAParser.js} filters the noise away & extracts only the most meaningful data: Browser, Engine, OS, CPU, & Device in a well-structured format.

{UAParser.js} starts from and is optimized to be used within browser. While it covers a vast range of detection, the size always kept to be as light as possible.

For extra cache performance, {UAParser.js} also available in popular CDN services: jsDelivr / CDNJS

No dependencies. No bloated framework. No transpiler needed. No unnecessary boilerplate. No large-sized files required.

Just a good ol' ES3-compatible syntax that is able to run on relatively old browsers while also performs on most modern devices.

Licensed under open-source terms, {UAParser.js} is free to use & modify at no charge. PRO licenses also available for non-open-source purpose.

Contribute back in form of a PR, or donate if you find it helpful for your business.

For jQuery user, {UAParser.js} automatically detects and generates a plugin as $.ua

Also, for TypeScript user, there is a community-maintained types: @types/ua-parser-js

Whether it's a client-side webpage running in a browser, or a server-side node.js app, simply type:

$ npm i ua-parser-js

TESTIMONIALS : LOVED BY DEVELOPERS

5/5

"A great utility library to have when you're investigating what kind of users are visiting your website and how you can improve their UX. Supports most browsers out there."

Gabrijel Golubić - Frontend Web Developer

"I've been using your library for a long time and it totally rocks!".

Christian Rich - Web Developer

"Thank you for putting out this very useful library!".

Anuj Nijhawan - Web Developer

SHOWCASES : TRUSTED BY TOP COMPANIES WORLDWIDE

DOWNLOADS : CHOOSE YOUR PACKAGE

	Open-Source Editions		Commercial Editions
License	MIT	AGPL	PRO Personal	PRO Business	PRO Enterprise
Browser detection
CPU detection
Device detection
Engine detection
OS detection
Enhanced detection
Client Hints support
Extras (Apps, Bots, Libs, Emails, Media Players, etc)
CommonJS support
ES modules support
TypeScript declarations available
Public npm module available
Direct downloads available
Allowed for commercial use
Permissive license
Unlimited use per 1 license
1-year limited support
Lifetime updates
Price	FREE	FREE	$12	$25	$500
GET THE PACKAGE

CONTRIBUTORS : SUPPORTED BY THE AMAZING OPEN-SOURCE COMMUNITIES

ONE-TIME SPONSOR MONTHLY SPONSOR GITHUB SPONSOR

What device.type am I using?

{UAParser.js} is a 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).

Extract Only What's Valuable

Relatively Small Footprint

Zero-deps Vanilla JS

100% Free & Open Source

Best Developer Experience

Client-side & Server-side

Who's Using {UAParser.js} ?
Showcasing some companies that are using our library

Package Options
Comparison between our regular open-source & PRO licenses

Contributors
Those who collaborate and continuosly improve this library to be awesome

Backers & Sponsors
Those who give back and get the value from using this library

Contribute to UAParser.js
It's free to use, but feel free to contribute if you find it helpful