A logger for just about everything.
Simplified HTTP request client.
A querystring parser that supports nesting and arrays, with a depth limit
small debugging utility
get colors in your node.js console
the complete solution for node.js command-line programs
fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as mkdir -p, cp -r, and rm -rf.
Node.js body parsing middleware
yargs the modern, pirate-themed, successor to optimist.