A logger for just about everything.
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.
yargs the modern, pirate-themed, successor to optimist.
The official MongoDB driver for Node.js
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
Parse, validate, manipulate, and display dates
Handlebars provides the power necessary to let you build semantic templates effectively with no frustration
Full featured Promises/A+ implementation with exceptionally good performance