Babel compiler core.

A Babel preset for each environment.

babel module loader for webpack

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

simple, flexible, fun test framework

Bare bones Promises/A+ implementation

JavaScript test spies, stubs and mocks.

Extends Chai with assertions for the Sinon.JS mocking framework.

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

CLI for webpack & friends