A tiny wrapper around Node.js streams.Transform (Streams2/3) to avoid explicit subclassing noise
Tiny millisecond conversion utility
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
yargs the modern, pirate-themed, successor to optimist.
YAML 1.2 parser and serializer
fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as mkdir -p, cp -r, and rm -rf.
the complete solution for node.js command-line programs