- mime-types
The ultimate javascript content-type utility.
- handlebars
Handlebars provides the power necessary to let you build semantic templates effectively with no frustration
- minimist
parse argument options
- body-parser
Node.js body parsing middleware
- q
A library for promises (CommonJS/Promises/A,B,D)
- ms
Tiny millisecond conversion utility
- colors
get colors in your node.js console
- async
Higher-order functions and common patterns for asynchronous code
- fs
- Top 12 Jupyter Notebook extensions