stevendiai

Preloadify lets you create a stylish, branded loading screen for your WordPress site.
Key features: 
– Upload and display your custom logo during page load 
– Choose from 5 animation styles: dots, circle, bar, pulse, bouncing logo 
– Live preview directly from the admin settings 
– Real-time saving: no need to click “Save” 
– Logo selector using the native WordPress media library 
– Customize loader background and animation color 
– Set a minimum display delay (e.g. 1500ms) 
– New: toggle switch to completely disable the loader 
– Translated into: English, French, Spanish, and German 
– Optimized for speed, accessibility, and flexibility
Ideal for creatives, agencies, e-commerce, and anyone who wants a smooth loading experience.

Preloadify

A customizable loading screen plugin with logo, animations, color options, preview, and instant save. Improve UX with style.

adrian7

WP Image Preloader, pre-loads images using Javascript. It uses an image preloader for jQuery (thanks to Matt Farina, http://www.mattfarina.com/). 
You can use it to preload hover images in your blog posts or in your wordpress themes, in menus slideshows etc. 
Find more about this plugin here: http://adrian.silimon.eu/wp-image-preloader/ .

WP Image Preloader

Preloads images using Javascript. Use it to enhance your blog's visitors experience by preloading images…

Preloadify vs WP Image Preloader