FileAPI — a set of javascript tools for working with files. Multiupload, drag'n'drop and chunked file upload. Images: crop, resize and auto orientation by EXIF.
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.