New Google Photos - Shared suggestions, libraries and photo books
Magnific Popup - The greater part of Lightbox modules will completely preload a picture before showing it.
Viso - Beautiful minimal image viewer for MacOS
LightGallery - A modern, electron and nodejs based image viewer for Mac, Windows and Linux.
Yogile - Photo storage simplified
jQuery Lightbox - jQuery Lightbox plugins are utilized to showcase images and other web stuff using modal dialogs.