- qs
A querystring parser that supports nesting and arrays, with a depth limit
- async
Higher-order functions and common patterns for asynchronous code
- cheerio
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
- winston
A logger for just about everything.
- lodash
Lodash modular utilities.
- js-yaml
YAML 1.2 parser and serializer
- mkdirp
Recursively mkdir, like `mkdir -p`
- debug
small debugging utility
- mocha
simple, flexible, fun test framework
- Top 12 Jupyter Notebook extensions