Animated Image Lazy Loader With Broken Image Fallback – rogano-lazy
rogano-lazy is a modern image lazy loader written in pure JavaScript without any 3rd dependencies.
JavaScript & CSS lazy load
Defer Loading Of Images And CSS Classes & Styles Using JavaScript – safe-defer.js
safe-defer.js is an SEO-friendly JavaScript lazy load library that has the ability to defer the loading of images, CSS classes, and inline CSS styles to improve your page load time.
Intersection Observer Based Image Lazy Load Library – io-lazyload
io-lazyload is an extremely fast JavaScript library for lazy loading images that uses IntersectionObserver API to handle image position detection.
Flexible Image Lazy Loader – kit.lazy.js
kit.lazy is a small, simple image lazy loading library that supports image tag, background image, and asynchronous images loading.
Delay The Loading Of Images Until Needed – lazy-image
The lazy-image library allows to load image sources on-demand (e.g. click, in view, etc).
Delay Loading Of Iframe Embedded Content Until Clicking – lazyembed.js
lazyembed.js is a lazy loading library for iframe embedded content such as Youtube/Vimeo videos, Google Maps, etc. The library delays the loading of these iframe content until clicked, with custom placeholder support.
Vanilla JavaScript Library For Image Lazy Load – vanillaLazyLoad
Yet another vanilla JavaScript library that helps delay the loading of images until they become visible in the viewport.
Modern Retina-ready Image Lazy Loader – lazyestload.js
A modern, fast, lightweight image lazy load JavaScript library that provides 2 methods to lazy load images with support for retina and responsive images.
Lazy Load Youtube Video With JavaScript – llyv.js
llyv.js is a Youtube Video lazy load library which allows the user to load Youtube Video Players on demand.
Responsive Image Lazy Load JavaScript Library – responsivelyLazy
responsivelyLazy is an ultra-light javascript library which allows you to delay the loading of appropriate images based on the width of their parent containers.