Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
Parse, validate, manipulate, and display dates
parse argument options
fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as mkdir -p, cp -r, and rm -rf.
elegant & feature rich browser / node HTTP with a fluent API
Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
Redis client library
YAML 1.2 parser and serializer