This is a fresh new collection of 10 best JavaScript and/or CSS libraries to create and display animated, customizable loading spinners and loading indicators when loading dynamic content into the page.
Originally Published Jan 3 2018, updated Jan 3 2019
1. css-loader
css-loader is a set of loading indicators / spinners built using single DIV element and pure CSS/CSS3. Useful to notify you of current loading state during a specific call to and from the server.
2. ispinner
ispinner is a lightweight CSS library that helps you display an iOS-style animated loading indicator while data in a specific area is loading.
3. SpinThatShit
SpinThatShit is a set of 12+ pure CSS single element loading spinners which can be used to indicate the content loading status in an elegant way. Fully customizable via SCSS.
4. Rocket-Loader
Rocket-Loader is a simple, lightweight javascript library that uses SVG icons to generate an animated loading spinner on a given container.
5. mk-spinners
mk-spinners is a fresh new collection of cool animated loading indicators/spinners created using pure CSS/SASS. Currently comes with 5 loading spinners and more will come soon.
6. Three Dots
Three Dots is a small CSS/CSS3 library that provides a set of 20 fancy animated loading spinners created with three dots.
7. material-loading
The material-loading lets you create a fullscreen loading screen for official Material Design Lite framework.
8. loadingOverlay.js
loadingOverlay.js is a standalone JavaScript library to create a configurable loading spinner (overlay) with spin handles support.
9. LoadLab
Yet another CSS loader collection that provides 16 animated loading indicators/spinnersbased on CSS3 animations and plain HTML structure.
10. contextLoader
Yet another JavaScript library which applies a Facebook-inspired animated context loader/placeholder to any container element you specify.