nivaldodasilva/ua-parser-js

UAParser.js is a small, dependency-free library that turns a user-agent string into browser, engine, operating-system, CPU, and device details. The principal workflow is to supply a string (or use the browser’s current user agent), parse it, and read the structured result. The README documents these distinct detection outputs and a combined result; sampled source shows regex-based matching and browser integration. Unsampled implementation details are not expanded into separate components.