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).

Demo

• Live demo: https://uaparser.dev

Documentation

• version 1.x : https://github.com/faisalman/ua-parser-js/tree/1.0.x#documentation
• version 2.x : https://docs.uaparser.dev

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

License Options

	Open-Source Editions		PRO / Commercial Editions
License options	MIT (v0.7~v1.0)	AGPL (>=v2.0)	PRO Personal	PRO Business	PRO Enterprise
Browser detection	⚠️	✅	✅	✅	✅
CPU detection	⚠️	✅	✅	✅	✅
Device detection	⚠️	✅	✅	✅	✅
Engine detection	⚠️	✅	✅	✅	✅
OS detection	⚠️	✅	✅	✅	✅
Bot detection	❌	✅	✅	✅	✅
AI Bot detection	❌	✅	✅	✅	✅
Extras (Apps, Libs, Emails, Media Players, etc) detection	❌	✅	✅	✅	✅
Enhanced detection result	❌	✅	✅	✅	✅
Client Hints support	❌	✅	✅	✅	✅
CommonJS support	✅	✅	✅	✅	✅
ES modules support	❌	✅	✅	✅	✅
npm module	✅	✅	✅	✅	✅
TypeScript declarations	⚠️	✅	✅	✅	✅
Allows commercial use	✅	✅	❌	✅	✅
Permissive (non-copyleft) license	✅	❌	✅	✅	✅
Unlimited use per 1 license	✅	✅	✅	❌	✅
1-year product support	❌	❌	✅	✅	✅
Lifetime updates	✅	✅	✅	✅	✅
Price	FREE (License)	FREE (License)	$14 (License)	$29 (License)	$599 (License)
GET THE PRO PACKAGES 📥

Development

Contributors

Please read CONTRIBUTING guide first for the instruction details.

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Backers & Sponsors

Support the open-source editions of UAParser.js on OpenCollective or GitHub Sponsors.