Lazy Loading Video Backgrounds with IntersectionObserver
Build a fast, mobile-friendly video background using IntersectionObserver for lazy loading and CSS for a smooth fade-in.
JavaScript & CSS lazy load
Lazy Load Fonts with IntersectionObserver API – LoadFont.js
A JavaScript utility to lazy-load font files when elements enter the viewport using IntersectionObserver. Control font loading with data attributes.
Fast, Lightweight YouTube Video Embed Web Component – lite-youtube
A vanilla JavaScript web component for faster YouTube embeds. Uses Shadow DOM, lazy loading, and responsive design to reduce page load times.
ScrollJs: Custom Scroll Animations and Lazy Loading
Improve user experience with ScrollJs. Add scroll-triggered animations and lazy load images for faster, more engaging websites.
Display Blurry Placeholders While Loading Images – unlazy
An SEO-friendly and framework-agnostic lazy loading library that displays a blurry image placeholder until the original image is completely loaded.
Responsive Progressive Image Lazy Loading Component – progressive-image
This is a custom-element that allows you to progressively loading images when the placeholders are clicked/tapped or scrolled into view.
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.
Faster Page Loads: Lazy Load YouTube Videos With NexosYT
Improve website speed and user experience with NexosYT, a JavaScript library for lazy loading YouTube videos.
Lazy Load Embed YouTube Player – youtube-iframe
A JavaScript library that easily adds Lazy Loading functionality to your Youtube videos embedded in your document.
Fast Youtube Video Embed With lite-youtube Component
The lite-youtube component makes Youtube video embed much faster than the traditional iframe method.