UAParser.js

The most comprehensive, compact, & up-to-date 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 FREE $12 $25 $500
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

Large or small, your contribution is valuable here. Please read CONTRIBUTING guide first for the instruction details.

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Backers & Sponsors