These jQuery Plugins for Media Will Be Your Needful One.
Focuspoint is a plugin for dynamically cropping images to fill the available space without cutting-out the image’s subject.
VIDE Easy as hell jQuery plugin for video backgrounds
GifPlayer is a small plugin that allows you to control when to play and stop animated GIFs.
Dense.js is a plugin for easily serving retina-ready images.
SVGMagic: the fully automated SVG fallback SVGMagic is a simple jQuery plugin that searches for SVG images (including background- and inline dataimages) on your website and creates PNG versions if the browser doesn't support SVG. Wondering why you should use SVG images? SVG images are vector based! Meaning that they will be as sharp as hell no matter how big they are. In other words: one file for every size. See it yourself: (assuming you are now using a browser that understands SVG images)
Face Detection is a powerful jQuery/Zepto plugin that detects faces on images, videos and canvases.
BttrLazyLoading is a plugin that allows your web app to only load images within the viewport as the user scrolls.
rowGrid.js is a plugin for placing images on a grid with support for infinte scrolling.
jQuery-Cropbox is a really useful plugin for in-place image cropping (zoom & pan, as opposed to select and drag).
Fluidbox is a replication of the Medium.com lightbox module, with some added improvements.