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.
code-stringify is node.js module that converts JavaScript variables into source codes. Unlike JSON.stringify, code-stringify converts things into strings of code, not JSON.