htmllint/htmllint-cli

Full featured Promises/A+ implementation with exceptionally good performance

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

the most correct and second fastest glob implementation in JavaScript

Bare bones Promises/A+ implementation

The semantic version parser used by npm.

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

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

simple, flexible, fun test framework

An unofficial html5 linter.