googlechromelabs/critters

CSS parser / stringifier

A JavaScript implementation of many web standards

a glob matcher in javascript

HTML parser and serializer.

Source code handling classes for webpack

Jest plugin to use babel for transformation.

A Babel preset for each environment.

a documentation generator

JavaScript Standard Style - ESLint Shareable Config

Import with sanity.

Additional ESLint's rules for Node.js

Enforce best practices for JavaScript promises

ESlint Plugin for the Standard Linter

Simplifies creation of HTML files to serve your webpack bundles

Delightful JavaScript Testing.

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.