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.
JavaScript & CSS lazy load
Progressive Image Loading Inspired By Medium.com – Pure Media
Pure Media is a tiny JavaScript library that applies a Medium.com like progressive loading effect to images within the document.
Pure JavaScript Native Lazy Loading Polyfill
A small vanilla JavaScript polyfill for the loading=”lazy” attribute.
Pure JavaScript Library For Lazy Loading Images & Videos – lazyload.js
lazyload.js is a stand-alone JavaScript library for lazy loading images and videos without any dependencies.
Fast Youtube Video Embed With lite-youtube Component
The lite-youtube component makes Youtube video embed much faster than the traditional iframe method.
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.
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.
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.
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.