- readable-stream
Streams3, a user-land copy of the stream library from Node.js
- ws
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
- node-fetch
A light-weight module that brings window.fetch to node.js
- q
A library for promises (CommonJS/Promises/A,B,D)
- debug
small debugging utility
- ms
Tiny millisecond conversion utility
- body-parser
Node.js body parsing middleware
- mocha
simple, flexible, fun test framework
- async
Higher-order functions and common patterns for asynchronous code
- Best IntelliJ plugins