matchHeight is a more robust, responsive equal heights plugin for jQuery. It makes the height of all selected elements exactly equal.
Flickerplate is a lightweight jQuery plugin that lets you flick through content. It's simple to use, fully responsive and touch enabled.
RRSSB is a solution for responsive social share buttons that you can easily customize it by tweaking a few variables. SVGs allow for tiny file size and retina support.
μslider is a responsive and touch friendly jQuery plugin slider. Content can be anything: images, text, iframes, html5 video and audio (natively), YouTube and Vimeo videos with a light js patch. It's highly flexible and very easy to configure.
jQuery lightGallery is a lightweight jQuery lightbox gallery for displaying image and video gallery.
RowGrid.js is a small, lightweight jQuery plugin for placing items in straight rows. It's responsive and can be use infinite scrolling.
Data Img is a tiny jQuery plugin to deal with responsive image delivery depending on screen width.
BttrLazyLoading is a jQuery plugin that allows your web application to defer image loading until images are scrolled to but not only! BttrLazyLoading also allows you to have different version of an image for 4 differents screen sizes: phones (<768px), tablets (≥768px), desktops (≥992px) and large Desktops (≥1200px).
Remodal is a flat, responsive, lightweight, easy customizable modal window jQuery plugin with declarative state notation and hash tracking.
Image Lightbox is a ascetic, minimalistic, extensible & configurable, responsive and touch-friendly, iOS, Android and Windows Phone compatible lightbox plugin. Silently preloads next image, uses CSS transform and transition, interacts with keyboard.
Respify is a simple responsive images library, which parses a image from a set of child span nodes with data-media and data-src attributes. It uses media queries to select images.
Fit.js has a very simple purpose and that is to help you fit things into other things.
Responsive lazy loader allows you lo load the most appropriate image renditions according to the current breakpoint and to the current display into the CSS grid-system.
picturefill is a responsive images approach that you can use today that mimics the proposed picture element using
spans, for safety sake. Picturefill works best in browsers that support CSS3 media queries
jQuery.TosRUs plugin is a great lightbox alternative for scrolling/swiping through any kind of content. On a desktop, tablet or smartphone, inside a HTML element or as a lightbox popup. It's responsive by default.