Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
A tiny wrapper around Node.js streams.Transform (Streams2/3) to avoid explicit subclassing noise
A library for promises (CommonJS/Promises/A,B,D)
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
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.
Handlebars provides the power necessary to let you build semantic templates effectively with no frustration
yargs the modern, pirate-themed, successor to optimist.
simple, flexible, fun test framework