Project Summary
UAParser.js- Lightweight JavaScript-based user-agent string parser library to detect browser, layout engine, operating system, CPU architecture, and device type/model, entirely from user-agent string. Supports browser & node.js environment. Also available as jQuery/Zepto plugin, Bower/Meteor package, & RequireJS/AMD module
ua-parser-js
Dual licensed under GPLv2 and MIT
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In a Nutshell, UAParser.js...
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has a well established, mature codebase
maintained by a large development team
with increasing Y-O-Y commits -
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took an estimated 1 years of effort (COCOMO model)
starting with its first commit in February, 2012
ending with its most recent commit 15 days ago
Quick Reference
GNU General Public License v2.0 only
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These details are provided for information only. No information here is legal advice and should not be used as such.
MIT License
Permitted
Commercial Use
Modify
Distribute
Sub-License
Private Use
Forbidden
Hold Liable
Required
Include Copyright
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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30 Day SummaryOct 9 2025 — Nov 8 2025
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12 Month SummaryNov 8 2024 — Nov 8 2025
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