jQuery Backstretch
Backstretch is a simple jQuery plugin that allows you to add a dynamically-resized, slideshow-capable background image to any page or element. The image will stretch to fit the page/element, and will automatically resize as the window/element size changes.
Beerslider
A vanilla JS keyboard accessible plugin for any before-after comparison
Intense Images
A simple library to view large images up close using simple mouse interaction, and the full screen.
FancyBox
FancyBox is a tool that offers a nice and elegant way to add zooming functionality for images, html content and multi-media on your webpages.
Lightslider
JQuery lightSlider is a lightweight responsive Content slider with carousel thumbnails navigation
Magnific Popup
Light and responsive lightbox plugin with focus on performance.
Bxslider 4
Responsive jQuery content slider
Baraja
Baraja is a jQuery plugin that allows to move elements in a card-like fashion and spread them like one would spread a deck of cards on a table.
Flex Slider
An awesome, fully responsive jQuery slider plugin
Colorbox
A light-weight, customizable lightbox plugin for jQuery
Photo Swipe
PhotoSwipe is a HTML/CSS/JavaScript based image gallery specifically targeting mobile touch devices
Antimoderate
The progressive image loading library for great good!
Galleria
Galleria is a JavaScript image gallery framework. The aim is to simplify the process of creating professional image galleries for the web and mobile devices.
Imager.js
Responsive images while we wait for srcset to finish cooking