Simple Toast Notification & Loading Indicator JavaScript Library – popular-message.js
A JavaScript library that helps create toast-like info/success/warning/error notifications and loading indicators on your modern web apps.
JavaScript & CSS loading indicator
Elegant Notification Popup JavaScript Library – Notiflix
Notiflix is a flexible, powerful and customizable notification popup library which sends different types of notification messages to the user.
Notification/Dialog/Loading Indicator JavaScript Library – Fnon
A multifunctional popup box library for creating toast notifications, alert/confirm dialog boxes, and various types of loading indicators on the web app.
Animated Skeleton Loading Screens In Pure CSS
A CSS skeleton loader library that creates an animated skeleton preview of your block content (e.g. text, cards, images) when the data is loading.
Pages Transition Loader In Vanilla JavaScript
A Vanilla JavaScript library that displays a customizable loading indicator while loading assets on your web pages.
CSS Only Image Loader With Fallback
A pure CSS loading indicator that displays when an image is loading on the page. It has the ability to display a fallback error image if the original image fails to load.
Customizable Screen Skeleton Loader In CSS – css-skeletons.css
A CSS library to generate an animated, highly customizable skeleton preview of your web content using a single DIV.
Facebook Inspired Skeleton Loader In Pure CSS – Placeholder Loading
This is the pure CSS solution to create simple, animated, customizable skeleton loading effect as you’ve seen on Facebook.
Image Loading Blur Effect In JavaScript And CSS
A loading indicator that adds a beautiful image loading blur effect to your site. Kind of like Medium.com’s image lazy loading animation.
Animated Button Loader In CSS
An animated loading animation that displays an awesome stripe animation inside your button. Built with plain HTML and CSS.