- through2
A tiny wrapper around Node.js streams.Transform (Streams2/3) to avoid explicit subclassing noise
- async
Higher-order functions and common patterns for asynchronous code
- commander
the complete solution for node.js command-line programs
- mocha
simple, flexible, fun test framework
- yargs
yargs the modern, pirate-themed, successor to optimist.
- cheerio
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
- readable-stream
Streams3, a user-land copy of the stream library from Node.js
- node-fetch
A light-weight module that brings window.fetch to node.js
- axios
Promise based HTTP client for the browser and node.js
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