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.
DaisyNav jQuery Plugin help you to build responsive navigation for your website.
Bigfoot.js is a simple jQuery plugin that detects footnotes on the page and makes them better. It creates clickable buttons out of the original footnote link and creates a popover when the footnote button is clicked. Finally, the script make sure the popover is appropriately sied and positioned so that it looks great on any screen size.
Tipue Search is a site search engine jQuery plugin. It's open source and responsive.
Tipue Search uses various modes for loading content. Static mode uses JSON, while Live mode grabs content from a list of pages. Tipue Image Search is a full image search plugin.
jQuery ReStable is a very simple and lightweight jQuery plugin that make tables responsive making them collapse into
Smoothslides is a responsive jQuery slideshow with Ken Burns style animations.
VenoBox is a just another responsive jQuery lightbox plugin, suitable for images, inline contents, iFrames, Google-Maps, Ajax requests, Vimeo and YouTube videos.
The big difference compared to many others modal-window plugins is that VenoBox calculates the max width of the image displayed and preserves its height if is taller than the window (so in small devices you can scroll down the content, avoiding vertical microscopic resized images).
Smoothproducts is a simple, lightweight and responsive product image viewer using jQuery.
jQuery ReSmenu is a simple and lightweight jQuery plugin that collapse
ul menus into selects on responsive layouts.
nanoGALLERY is a touch enabled and responsive image gallery with justified, cascading and grid layout. It supports self hosted images and pulling in Flickr, Picasa, Google+ and SmugMug photo albums.
Responsive-img.js is a lightweight plugin for fast, clean and easy responsive image replacement using to the viewport your visitor's browser.
This way you can reduce the payload for your users by only letting them download the appropriate images for their device.
Slippry is responsive slider plugin for jQuery.
Slippry is written to work on the latest jQuery functions, CSS3 tricks and HTML5 elements. Slippry offers a heap of settings you actually need, and with the included CSS and Sass you can make Slippry look just how you need it.
Featherlight is a very lightweight jQuery lightbox. It is responsive, supports images, ajax and iframes out of the box and range of configuration options, you can adapt it to your needs.