webextensions/copy-files-from-to

Higher-order functions and common patterns for asynchronous code

Promise based HTTP client for the browser and node.js

js function for hashing messages with MD5

Recursively mkdir, like `mkdir -p`

JavaScript parser, mangler/compressor and beautifier toolkit for ES6+

yargs the modern, pirate-themed, successor to optimist.

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

file system assertions for chai

simple, flexible, fun test framework

A deep deletion module for node (like `rm -rf`)

Portable Unix shell commands for Node.js

Detect if a buffer is utf8 encoded.

cjson - Commented JavaScript Object Notation. It is a json loader, which parses only valid json files, but with comments enabled. Useful for loading configs.

A logging helper for Node JS Edit