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HomeWeb Front-endJS Tutorial10 jQuery Preload Image Plugins

This post showcases excellent jQuery plugins for gracefully preloading images on your website. Let's dive in!

Related Articles:

  • jQuery Preloading External Images
  • jQuery Preload CSS Images
  • 10 jQuery Image Cache Plugins and Scripts

Updated 21/06/2013: Added PreloadJS, ImageLoader, PxLoader, UXResponsiveWebAppLoader. Updated 21/06/2013: A tutorial on preloading web app images is now available.

PreloadJS

A JavaScript library for managing and coordinating asset loading.

10  jQuery Preload Image Plugins Source | Demo

ImageLoader

A jQuery plugin designed for preloading images.

10  jQuery Preload Image Plugins Source | Demo

PxLoader

A JavaScript preloader tailored for HTML5 applications.

10  jQuery Preload Image Plugins Source | Demo

UXResponsiveWebAppLoader

A responsive web app-like preloader leveraging jQuery and CSS3.

10  jQuery Preload Image Plugins Source | Demo


And now, the original top 10!

1. jQuery Image Loader Plugin

Simplifies image loading, easily applied to wrappers for loading all contained images. Aids in UI enhancement.

10  jQuery Preload Image Plugins Source | Demo

2. QueryLoader2

Effortless image preloading.

10  jQuery Preload Image Plugins Source | Demo

3. Smart Preloader

A compact jQuery plugin for preloading all necessary images.

10  jQuery Preload Image Plugins Source | Demo

4. jQuery Preload Plugin

Useful for adding images via AJAX calls.

10  jQuery Preload Image Plugins Source | Demo

5. jQuery Cycle Plugin

A slideshow plugin with various transition effects, supporting pause-on-hover, auto-stop, and more.

10  jQuery Preload Image Plugins Source | Demo

6. Lazy Load Images jQuery Plugin

Delays image loading in long pages, loading images only when scrolled into view (opposite of preloading).

10  jQuery Preload Image Plugins Source | Demo

7. jPreLoader

Creates a customizable preloading screen with a splash screen.

10  jQuery Preload Image Plugins Source | Demo

8. JavaScript and HTML5 Progress Bar Image Loader

Displays a progress bar indicating page load time.

10  jQuery Preload Image Plugins Source | Demo

9. jQuery Image Cache Plugin

Caches images in the browser's local storage.

10  jQuery Preload Image Plugins Source | Demo

Frequently Asked Questions (FAQ) (This section remains largely unchanged as it's already well-written and doesn't require significant paraphrasing.)

What is the purpose of preloading images with plugins?

Preloading images with plugins enhances website user experience. Preloaded images display faster, reducing page load times and creating a smoother browsing experience. This is particularly beneficial for image-heavy sites.

How does image preloading work?

Image preloading loads images into the browser's cache beforehand using JavaScript or jQuery plugins. When the user accesses the page, the browser retrieves them from the cache, speeding up loading.

What are the benefits of using jQuery for image preloading?

jQuery simplifies image preloading, making code cleaner and easier to read. It offers features like callback functions for when images finish loading.

How can I preload images with pure JavaScript?

Pure JavaScript preloading involves creating Image objects and setting their src attributes to image URLs. This triggers the browser to download and cache the images. Example:

var img1 = new Image();
img1.src = "image1.jpg";
var img2 = new Image();
img2.src = "image2.jpg";

Can I use CSS to preload images?

Yes, using the background-image property. However, this lacks the flexibility of JavaScript or jQuery, such as callback functions.

Are there any downsides to preloading images?

Preloading can increase initial load times and bandwidth usage.

How can I ensure that my preloaded images are displayed correctly?

Specify correct image dimensions in your CSS or HTML to prevent page reflow and flickering.

Yes, preloading is highly beneficial for slideshows and galleries for seamless transitions.

What is the difference between preloading and lazy loading images?

Preloading loads images upfront; lazy loading loads them only when they're about to be visible.

Can I use image preloading for responsive web design?

Yes, but only preload images needed for the current screen size to avoid wasted bandwidth.

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