Px Loader
PxLoader is a simple JavasScript library for creating preloaders and resource downloaders for HTML5 apps.
Lazy Load Xt
Lazy load XT is a jQuery plugin for images, videos and other media
Pilpil
Pilpil - Progressive Image Loading
Script.js
Asyncronous JavaScript loader and dependency manager
LABjs
Loading And Blocking JavaScript: On-demand parallel loader for JavaScript with execution order dependencies
Lazyload
Tiny, dependency-free async JavaScript and CSS loader.
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+.
Almond
A minimal AMD API implementation for use after optimized builds
Nanobar
Very lightweight progress bars. No jQuery
Aload
Loads images, scripts, styles, iframes, videos and audio asynchronously.
Queue
Yet another asynchronous helper library for JavaScript. 387 bytes minified and gzipped!
Oc Lazy Load
Load modules on demand (lazy load) in AngularJS
Query Loader2
Version of the QueryLoader by Gaya Design. Preload images with ease.
Head js
The only script in your HEAD. Head JS loads JavaScript files in parallel like images without blocking the page. Your page will be faster. Even with a single combined file.
Imagesloaded
JavaScript is all like "You images done yet or what?"
Sea.js
A Module Loader for the Web
Layzr.js
A small, fast, modern, and dependency-free library for lazy loading.