Minimalist Image Lazy Loader Based On Intersection Observer – lzy.js
lzy.js is a small performant image & background image lazy loader built with vanilla JavaScript and the Intersection Observer API.
JavaScript & CSS lazy load
Pure JavaScript Library For Lazy Loading Images – lazyload.js
lazyload.js is a stand-alone JavaScript library for lazy loading images without any dependencies.
Lazy Load Image With Placeholder And Fallback – imagebuddy
imagebuddy is a pure JavaScript plugin for lazy loading images with support for custom placeholder and fallback.
Accessible Image Lazy Load In Pure JavaScript – gandul.js
gandul.js is a small accessible image lazy load library that works with the a link and supports responsive image delivery.
Small Image/Video/Iframe Lazy Loader – yall.js
yall.js is a really small JavaScript library to lazy load images, videos, iframe contents and background images as the users scroll through your content-heavy webpage.
Progressively Load Images & Iframes Using Plain JavaScript – ProgressiveMedia
The ProgressiveMedia is a vanilla JavaScript plugin used to loads images and iframes progressively as they’re scrolled into view.
Performant Element lazy Load Library – Lozad
Lozad is a small, highly performant JavaScript library used to lazy load any html elements (e.g. images, videos, etc.) using Intersection Observer Web API.
Responsive Image Lazy Load JS Library – lazysizes
lazysizes is an easy yet robust JS library used to delay the loading of images (iframes, scripts, etc) until they come into view.
Web Preloader & Lazy Loader Library – Loader
Loader is a powerful JavaScript library used to preload or lazy load ‘Heavy’ HTML elements on the webpage, such as images, audios, videos, iframes, and etc.
Load Youtube Video Only When Needed – Youtube LazyLoad
Yet another Youtube lazy loader that delays the loading of Youtube video player to improve the performance of your web page.