Pure JavaScript Native Lazy Loading Polyfill
A small vanilla JavaScript polyfill for the loading=”lazy” attribute.
JavaScript & CSS lazy load
Lazy Load Vimeo Video Player Until You Click The Thumbnail – Vimeo LazyLoad
Vimeo LazyLoad loads Vimeo video player on-demand when the user clicks on the play button & thumbnail image.
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.
Modern SEO-friendly Image Lazy Load Library – leniwiec.js
leniwiec.js is a tiny JavaScript lazy load library that supports img/picture tags and background images. Powered by the Intersection Observer API.
Lazy Loading Of Images And Iframes Using IntersectionObserver – AyLazyLoader
AyLazyLoader is a native JavaScript lazy loader for lazy loading images, iframes and AJAX content based on Intersection Observer API.
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.
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.
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.