#1
Titan Preloaders & Page Transitions WordPress Plugin
The Largest Curatorial Library
With Wordpress Loader
#2
JS Animation Loader
This loader has a unique and beautiful look (I’ll let the praise aside because everyone praises their services for promoting it and such, so I’ll start with the topic right away ).
#3
PageLoader
PageLoader is a wildly customizable loading screen and progress bar plugin for WordPress. Add it to your theme as a simple preloader or make use of it as a full-blown branding tool; the incredibly easy to use customization tools allow for both. PageLoader is a fantastically lightweight and unobtrusive preloader that makes an instant impression on your visitors.