Aload
Loads images, scripts, styles, iframes, videos and audio asynchronously.
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
Pilpil
Pilpil - Progressive Image Loading
Lazyload
Tiny, dependency-free async JavaScript and CSS loader.
Oc Lazy Load
Load modules on demand (lazy load) in AngularJS
LABjs
Loading And Blocking JavaScript: On-demand parallel loader for JavaScript with execution order dependencies
jQuery Pjax
pushState + ajax = pjax
Queue
Yet another asynchronous helper library for JavaScript. 387 bytes minified and gzipped!
Px Loader
PxLoader is a simple JavasScript library for creating preloaders and resource downloaders for HTML5 apps.
Script.js
Asyncronous JavaScript loader and dependency manager
Layzr.js
A small, fast, modern, and dependency-free library for lazy loading.
Lazy Load Xt
Lazy load XT is a jQuery plugin for images, videos and other media
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+.
Imagesloaded
JavaScript is all like "You images done yet or what?"
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.
Query Loader2
Version of the QueryLoader by Gaya Design. Preload images with ease.