- commander
the complete solution for node.js command-line programs
- postcss
- qs
A querystring parser that supports nesting and arrays, with a depth limit
- ws
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
- async
Higher-order functions and common patterns for asynchronous code
- superagent
elegant & feature rich browser / node HTTP with a fluent API
- rimraf
A deep deletion module for node (like `rm -rf`)
- body-parser
Node.js body parsing middleware
- fs
- Top 12 Jupyter Notebook extensions