Streams3, a user-land copy of the stream library from Node.js
The semantic version parser used by npm.
Redis client library
Parse, validate, manipulate, and display dates
Node.js body parsing middleware
small debugging utility
The official MongoDB driver for Node.js
fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as mkdir -p, cp -r, and rm -rf.
Higher-order functions and common patterns for asynchronous code