Vegas
Vegas is a jQuery plugin to add beautiful fullscreen backgrounds to your webpages. It even allows Slideshows.
Prettyphoto
prettyPhoto is a jQuery based lightbox clone. Not only does it support images, it also add support for videos, flash, YouTube, iFrames. It’s a full blown media lightbox. The setup is easy and quick, plus the script is compatible in every major browser.
Photoset Grid
A simple jQuery plugin to arrange images into a flexible grid, based on Tumblr's photoset feature.
Photo Swipe
PhotoSwipe is a HTML/CSS/JavaScript based image gallery specifically targeting mobile touch devices
Html2canvas
Screenshots with JavaScript
GLSL.js
A light Javascript & GLSL library for vizualisation and game purposes (2D or 3D).
Lity
Lightweight responsive lightbox.
Clmtrackr
Javascript library for precise tracking of facial features via Constrained Local Models
Responsive Slides
Simple & lightweight responsive slider plugin (in 1kb)
Cropper
A simple jQuery image cropping plugin.
Lightgallery.js
Full featured javascript lightbox gallery. No dependencies.
Sylvester
Vector, matrix and geometry math JavaScript
Nano Gallery
image gallery simplified - jQuery plugin. Touch enabled, responsive, justified/cascading/grid layout and it supports pulling in Flickr, Google Photos and self hosted images.
Light Gallery
A lightweight, customizable, modular, responsive, lightbox gallery plugin for jQuery. :+1:
Featherlight
Featherlight is a very lightweight jQuery lightbox plugin. It's simple yet flexible and easy to use. Featherlight has minimal css and uses no inline styles, everything is name-spaced, it's completely customizable via config object and offers image, ajax and iframe support out of the box. Featherlights small footprint weights about 4kB – in total.
Liquidfun
2D physics engine for games
Jcrop
Jcrop (official) - Image Cropping Plugin for jQuery