Clean & Well-Structured
Effortless user-agent detection integration.
Vast Detection Categories
Detects various devices, browsers, bots, and more.
Minimal Footprint
Maintains optimal app performance.
Isomorphic Library
Compatible with both browser and Node.js.
Public npm Package
Easily integrates into your workflow.
Lifetime Updates
Stay up to date with evolving trends.
"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
"Thanks to the awesome people who make life so much easier for developers.. The evolution of the internet has made it critical that we detect the user's device type accurately to make our apps function better and look better.".
The-Linguist
"I've been using your library for a long time and it totally rocks!".
Christian Rich
"Thank you for putting out this very useful library!".
Anuj Nijhawan
"For years, it has been appreciated as a valuable tool for web developers. Its ability to accurately parse user agent strings.. has made it an essential library for many of us.".
LogRocket
Case StudiesHover over the company logo to see projects that use UAParser.js
Package Options Pricing & comparison between editions
- Full detection features
- npm & downloadable
- Non-commercial use
- Unlimited projects
- 1 year support
- Lifetime updates
- Full detection features
- npm & downloadable
- Commercial usage rights
- 1 project per license
- 1 year support
- Lifetime updates
- Full detection features
- npm & downloadable
- Commercial usage rights
- Unlimited projects
- 1 year support
- Lifetime updates
| OSS Editions | Commercial Editions | ||||
|---|---|---|---|---|---|
| License | MIT (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 | |||||
| TypeScript declarations | |||||
| npm module available | |||||
| Direct downloads available | |||||
| Allows commercial usage | |||||
| Permissive (non-copyleft) license | |||||
| No open-source obligations | |||||
| No usage limitation | |||||
| 1-year product support | |||||
| Lifetime updates | |||||
| Price (one-time fee) | FREE | FREE | $14 | $29 | $599 |
| GET NOW | |||||
UAParser @CloudNEWOur @Cloud REST API / MCP service offers seamless integration with any tech stack or AI agent
# REST API Example
POST https://api.uaparser.dev/cloud/v1/identify/device
Content-Type: application/json
Authorization: Bearer YOUR_API_KEY
{
"headers": {
"User-Agent" : "Mozilla/5.0 (iPhone; U; CPU iPhone OS 5_1_1 like Mac OS X; en) AppleWebKit/534.46.0 (KHTML, like Gecko) CriOS/19.0.1084.60 Mobile/9B206 Safari/7534.48.3"
}
}
UAParser.js is licensed under MIT / AGPLv3 / PRO licenses. Copyright (c) 2012-2024 Faisal Salman.