Touch Gallery is an open source full-screen photo gallery for touch devices that brings the look and feel of native photo viewing applications to your mobile browser.

This open source photo gallery is a jQuery plugin and was primarily written and optimized for Mobile Safari running on the iPad or iPhone 4 but it also works fine in Dektop Safari, Firefox 4, as well as in Opera and Chrome.
Touch Gallery depends on two other plugins: transform and activity-indicator and both are packaged in one Javascript file you download with touch gallery.
SlideShow is an extendable, flexible, and easy to implement MooTools Slideshow Widget. Use any element, not just images; this slideshow widget can be used to create:
- Slideshows
- Image galleries
- Tabs
- News tickers

Slideshow comes with packaged transitions but is easy to extend and create your own transitions. The class is built to handle the basics of a slideshow, extend it to implement your own navigation piece and custom transitions.
Greepit previously published a Free JavaScript based Content Slider, SlideDeck. This free content slider is now released as a free Wordpress plugin.

SlideDeck helps your to create a media and content rich slider on your WordPress powered blog or website without writing a single line of code! The SlideDeck wordpress plugin works within the easy-to-use WordPress interface and allows you to post a slider live in minutes. Insert your SlideDeck into your posts, on your pages and even in your theme!
A clean, professional and first HTML5 audio, video and image gallery based on jMediaElement which is an HTML5 audio and video development kit with Flash and VLC Fallback.

Multimedia Gallery integrates audio and video as exhibit pieces along images. It uses an XML file for defining the items in the gallery and a PHP class with an XSL Stylesheet to transform the data. Once a thumbnail is clicked, it navigates through the previews and shows the descriptions (from the configuration XML file).
NyroModal is a customizable modal window plugin built with jQuery. The Look and Animations can You’ll be able to customize either the look by CSS and the animation by creating your own using the jQuery animation function.

Features
- Ajax Call with targeting content
- Images Gallery with arrow navigating
- Form with file upload with targeting content
- Customizable animation
jqFancyTransitions is easy-to-use jQuery plugin for displaying your photos as slideshow or to create an image gallery with fancy strip transition effects.

This free image gallery comes with ‘wave’, ‘zipper’ and ‘curtain’ effect and provides options to easily create custom transition effects.
Superfun creates a Lightbox gallery with HTML5 Canvas element and CSS3. It allows for AJAX injection, SWF content, iFrame content, and utilizes the new CSS3 transform property to mimick a Flash environment, while completely avoiding Flash.

Though its not as powerful as we see around but consider this a first step and an HTML5, CSS3 experiment (successful experiment to me) with scale, rotation and transformation.
Tiny Carousel is a lightweight jQuery plugin to create carousel content slider. This free content slider works with HTML based content which makes it useful, specially for new techies.

Tiny Carousel can be used as a vertical or horizontal content slider and can be set to work like a tab control.
Features
- Supports navigation by button or paging
- Number of block to move at a time can be set
- Easy customizable
Galleria is a Free JavaScript image gallery. It can take a simple list of images and turn it into a foundation of multiple intelligent gallery designs.
Galleria can be used as a fixed-width image gallery or flexible full screen image gallery.

This free JavaScript image gallery can create, scale and crop images on the fly, making your gallery layout flexible towards any existing design.
Galleria Features
- Creates thumbnails on the fly
- Degrades gracefully
- Flickr fetcher included
- Built for performance
- Using jQuery’s library
Galleria uses a convenient Theme API that makes gallery styling and customization a breeze.
Greepit has previously shared a great jQuery image gallery – Coin Slider that offers awesome transition effects. Coin slider is just being released as a Wordpress plugin.

Coin Slider Wordpress plugin lets you create beautiful transition effects for your featured posts & can also be used as an image gallery.
Choose between three types of transition effects:
- Random
- Swirl
- Rain
You can customize width, height, delay time, number of posts etc.