Pilpil
Pilpil - Progressive Image Loading
Webpack
Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.
Queue
Yet another asynchronous helper library for JavaScript. 387 bytes minified and gzipped!
Java Script Load Image
JavaScript Load Image is a library to load images provided as File or Blob objects or via URL. It returns an optionally scaled and/or cropped HTML img or canvas element. It also provides a method to parse image meta data to extract Exif tags and thumbnails and to restore the complete image header after resizing.
Px Loader
PxLoader is a simple JavasScript library for creating preloaders and resource downloaders for HTML5 apps.
Lazyload
Tiny, dependency-free async JavaScript and CSS loader.
Aload
Loads images, scripts, styles, iframes, videos and audio asynchronously.
Blazy
bLazy is a lightweight lazy loading and multi-serving image script. It's written in JavaScript why it doesn't have any dependencies for 3rd party libraries like jQuery. bLazy is working in all modern browser including IE7+.
Nanobar
Very lightweight progress bars. No jQuery
Oc Lazy Load
Load modules on demand (lazy load) in AngularJS
Query Loader2
Version of the QueryLoader by Gaya Design. Preload images with ease.
Lazy Load Xt
Lazy load XT is a jQuery plugin for images, videos and other media
Lazysizes
High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.
Almond
A minimal AMD API implementation for use after optimized builds
Imagesloaded
JavaScript is all like "You images done yet or what?"
jQuery Pjax
pushState + ajax = pjax
RequireJS
A file and module loader for JavaScript