"easy to use responsive image viewer especially for mobile devices"
cf. https://github.com/appleple/SmartPhoto
"A customizable, modular, responsive, lightbox gallery plugin for jQuery."
cf. https://github.com/sachinchoolur/lightGallery
"Touch-friendly JavaScript image gallery for mobile and desktop, without dependencies. Responsive layout. Swipe and zoom gestures. (...) Touch gestures: All basic gestures are supported: flick to the next or previous image, spread to zoom in, drag to pan, pinch to zoom out or close, tap to toggle the controls, double-tap to zoom." (ibd., 2017-05-23)
Cf. https://github.com/dimsemenov/PhotoSwipe
"Store, sync, and share your data just the way you want it."
Formerly phpwebgallery.net