- ms
Tiny millisecond conversion utility
- mime-types
The ultimate javascript content-type utility.
- rimraf
A deep deletion module for node (like `rm -rf`)
- mkdirp
Recursively mkdir, like `mkdir -p`
- readable-stream
Streams3, a user-land copy of the stream library from Node.js
- async
Higher-order functions and common patterns for asynchronous code
- bluebird
Full featured Promises/A+ implementation with exceptionally good performance
- handlebars
Handlebars provides the power necessary to let you build semantic templates effectively with no frustration
- commander
the complete solution for node.js command-line programs
- Top 12 Jupyter Notebook extensions