- ws
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
- commander
the complete solution for node.js command-line programs
- moment
Parse, validate, manipulate, and display dates
- ms
Tiny millisecond conversion utility
- bluebird
Full featured Promises/A+ implementation with exceptionally good performance
- body-parser
Node.js body parsing middleware
- async
Higher-order functions and common patterns for asynchronous code
- http
- crypto
- Top 12 Jupyter Notebook extensions