Ship 4x faster with developer-first dictation that works in every app.
FEATURED SPONSORS
DEMO: USER-AGENT PLAYGROUND
What your browser tells you:
😵💫💢 Complex
🫤❓ Unpredictable
😭💸 Costly
What UAParser.js gives you:
🙂✨ Concise
🙂💡 Insightful
🙂💰 Valuable
VS
Browser
OS
CPU Architecture
Device Type
Device Vendor & Model
Category
Engine
isBot()
isAICrawler()
TRY MORE EXAMPLES
DETECT GPU FROM WEBGL DATA (EXPERIMENTAL FEATURE)
GPU
FEATURES
Clean & Well-Structured
Effortless, intuitive API with clear output.
Wide Detection Coverage
Detects various devices, browsers, bots, and more.
Lightweight & Fast
Keeps your bundle size compact and efficient.
Works Everywhere
Runs seamlessly in browser and Node.js.
npm-Ready Package
Easily integrates into your existing workflow.
Lifetime Updates
Stay up-to-date with the ever-evolving trends.
LOVED BY DEVELOPERS
Great Utility!
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
Easier Life!
5/5
"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
Totally Rocks!
5/5
"I've been using your library for a long time and it totally rocks!".
Christian Rich
Very Useful!
5/5
"Thank you for putting out this very useful library!".
Anuj Nijhawan
Essential Library!
5/5
"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
TRUSTED BY TOP TECH COMPANIES
Case StudiesHover over the company logo to see projects that use UAParser.js
Hover over the company logo to see projects that use UAParser.js
DOWNLOAD: CHOOSE YOUR PACKAGE
Package Options
Pricing & comparison between editions
Pricing & comparison between editions
PRO Personal
Non-commercial usage
- Full detection features
- npm & downloadable
- Non-commercial use
- Unlimited deployments
- 1 year support
- Lifetime updates
PRO Business
1 End-Product per 1 License
- Full detection features
- npm & downloadable
- Commercial rights
- 1 TLD per 1 license
- 1 year support
- Lifetime updates
PRO Enterprise
Full usage rights
- Full detection features
- npm & downloadable
- Commercial rights
- Unlimited deployments
- 1 year support
- Lifetime updates
See Detailed Feature Comparison
| 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 | |||||
| Unlimited end-products | |||||
| Unlimited deployments | |||||
| 1-year product support | |||||
| Lifetime updates | |||||
| Price (one-time fee) | FREE | FREE | $14 | $29 | $599 |
| GET NOW | |||||
UAParser.js is licensed under MIT / AGPLv3 / PRO licenses. Copyright (c) 2012-2025 Faisal Salman.