ua-parser-js
The premium Open Source alternative to DeviceAtlas
🎯 Best for:Developers needing reliable client-side or server-side device identification.
What is ua-parser-js?
Replaces paid device detection APIs with a lightweight JavaScript library. Parses User-Agent strings to identify browsers, OS, and hardware without external dependencies.
Tech Stack
JavaScriptOS & Utilities
Why ua-parser-js?
- • Zero dependencies
- • Extensive device database
- • Small footprint
Limitations
- • UA string unreliability
- • Frequent updates needed
- • Dual-license complexity
3/5/2026
Last Update
1,220
Forks
21
Issues
AGPL-3.0
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to ua-parser-js instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on DeviceAtlas)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%