Simple Image Gallery (by JoomlaWorks) is truly the simplest and most effective way to add image galleries into your Joomla content and a classic must-have extension for any Joomla based website.

Ozio Gallery is a responsive photo and VIDEO gallery designed for Joomla, written in javascript which shows images published ONLY on Google Photos personal profile and video from YouTube. All your images and video are cloud hosted and automatically scaled using hi-quality settings.

Unite Responsive Tile Gallery is flexible and easy to integrate photo gallery featured in Metro Design. It allows you to build your unique photo wall with your custom settings

Droppics is the easiest image and gallery manager for Joomla. Indeed, with Droppics you get a complete solution to manage gallery AND single image on your website

JS Social Gallery is a jQuery plugin based HTML5 multimedia gallery enabling you to showcase your photos/audio/video from Facebook, instagram, Google+ and Pinterestin a modern and sleek interface. You have the option of presenting your items in in either columns or rows type grid. The gallery features a fully responsive design and can fit in any screen size ranging from mobile phones to desktop browsers. The gallery is also optimized for retina and touch screens and provides the feel of a native app. JS Social Gallery plays audio/video using HTML5 in supported browsers and fallbacks to Flash in older browsers.