UAParser.js
A parser for browser, operating-system, and device information from user agents.
What it does
A parser for browser, operating-system, and device information from user agents.
When it fits
Interpreting user-agent strings in analytics or compatibility workflows.
Other options in this category
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- Dinero.js — Handling currencies and arithmetic without treating money as an unstructured number.
- es-toolkit — Handling everyday collection and data transformations with individual helpers.
- FilterQL — Expressing reusable filtering conditions over collections.
Source
Project source for UAParser.js ↗
Editorial overview reviewed on October 24, 2026. Follow the source for current setup, compatibility, and licensing.