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.
A highly configurable logging utility for both nodejs and browser environments. Allows logging to console, file (for node environment) or configurable DOM overlay (for browser).