Streams3, a user-land copy of the stream library from Node.js
YAML 1.2 parser and serializer
Full featured Promises/A+ implementation with exceptionally good performance
Handlebars provides the power necessary to let you build semantic templates effectively with no frustration
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.
Parse, validate, manipulate, and display dates
The official MongoDB driver for Node.js