MasonGram is a jQuery plugin to add Instagram feed to a page in masonry layout.
Thumbelina is a very lightweight jQuery content slider designed for galleries of thumbnail images. It integrates well with other plugins, and is a perfect solution where too many thumbnails would clutter the page.
Lity is a ultra-lightweight, accessible and responsive lightbox plugin which supports images, iframes and inline content out of the box. It requires jQuery or Zepto
SmartPhoto.js is an easy to use responsive image viewer especially for mobile devices.
It's free to use for personal or open source projects.
Lightbox is a simple lightbox script without dependencies.
sdFilterMe is a simple light-weight jQuery plugin to easily filter and order portfolio, articles, gallery, etc.
Unite Gallery is a responsive jQuery image and video gallery plugin. This gallery is very powerfull, fast and has the most of nowdays must have features like responsiveness, touch enabled and even zoom feature, it's unique effect.
ToxicBox is a jQuery lightbox plugin that displays pictures, containers, and notifications in a popup window.
Zoomify is a jQuery plugin for simple lightboxes with zoom effect.