cheerio
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
Updated by @mattmueller
url-parse
Small footprint URL parser that works seamlessly across Node.js and browser environments
Updated by @unshiftio
ua-parser-js
Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent data. Supports browser & node.js environment
Updated by @faisalman