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).

License Options

	Open-Source Editions		PRO / Commercial Editions
License options	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	⛔️	✅	✅	✅	✅
npm module available	✅	✅	✅	✅	✅
TypeScript declarations available	⚠️	✅	✅	✅	✅
Allowed for commercial use	✅	✅	⛔️	✅	✅
Permissive (non-copyleft) license	✅	⛔️	✅	✅	✅
Unlimited use per 1 license	✅	✅	✅	⚠️	✅
1-year support	⛔️	⛔️	✅	✅	✅
Lifetime updates	✅	✅	✅	✅	✅
Price	FREE (License)	FREE (License)	$12 (License)	$25 (License)	$500 (License)
GET THE PRO PACKAGES 📥

Version 2.0

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

Documentation

Development

Contributors

Please read CONTRIBUTING guide first for the instruction details.

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