LightGallery is a JavaScript image viewer that shows images above web page (lightbox) and has ability to show both single images and galleries using slide and fade effects. It is very small (8.5K - minified version) yet powerfull and does not depend on any other libraries. It is tested in all A-grade browsers: IE 7+, Firefox, Safari, Opera, Chrome.

Features

• Zoom In/Out
• Ability to change full size/fit screen mode
• Nice animated effects - resize and fade
• Ability to set options: change animation speed, turn animation on/off, set sync resize, enable/disable zoom etc.
• Ability to add additional language packs (only Russian is available atm)
• Images preload
• Keyboard navigation

Demo of the gallery is available here