- yargs
yargs the modern, pirate-themed, successor to optimist.
- async
Higher-order functions and common patterns for asynchronous code
- minimist
parse argument options
- mkdirp
Recursively mkdir, like `mkdir -p`
- winston
A logger for just about everything.
- postcss
- bluebird
Full featured Promises/A+ implementation with exceptionally good performance
- debug
small debugging utility
- commander
the complete solution for node.js command-line programs
- Top 12 Jupyter Notebook extensions