Magnific Popup - The greater part of Lightbox modules will completely preload a picture before showing it.
digiKam - Professional Photo Management with the Power of Open Source
jQuery Lightbox - jQuery Lightbox plugins are utilized to showcase images and other web stuff using modal dialogs.
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
prettyPhoto - prettyPhoto is a jQuery Lightbox clone.
Photos on macOS - Photos keeps your images organized and accessible. Rediscover favorite shots with Memories. Access them on your devices with iCloud Photos.