Preload Web Pages When Hovering Over Links – Prerender.js
prerender.js detects the user interactions and preloads all the assets of a web page in an iframe when the user hovers over the corresponding link or button.
JavaScript & CSS preloader
Simple Image Preloader With Callbacks – resloader
resloader is a pure JavaScript library to preload an array of images (or image objects) with useful onStart, onProgress, and onComplete callback functions.
Any Resources Preloader JavaScript Library – Loader.js
Loader.js is a pure JavaScript preloader that preloads web resources (text, JSON, images, audios, videos, etc) and triggers certain events while loading and after loaded.
Image Preloader With Loaded Callback – ImagePreloader
A lightweight image preloader written in pure JS that will trigger a callback function when all the provided images are completely loaded.
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.
Google Inbox Inspired Preloader With Pure JavaScript – Prelodr
Prelodr is a native JavaScript library (also can be used as a jQuery plugin) that helps create a Google Inbox style content preloader with async and chaining support.
9 CSS Only Loaders
A lightweight collection of 9+ loaders, loading indicators, preloaders styled and animated with pure CSS/CSS3.
Lightweight Pure JavaScript Preloader – preloader.js
preloader.js is a super tiny JavaScript library used for showing a CSS3 animated preloader before the page opens.
Minimal Fullscreen Image Preloader – Preloader.js
Preloader.js is a super lightweight JavaScript library that displays a fullscreen overlay with custom loading text until all the specified images have been loaded.