Flickr - image and video hosting website
LightMV - LightMV is the best free online service for you to make a video using photos and music.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Photopia - Photopia is the official successor to ProShow. Find out how you can easily transition to the next generation of slideshow software.
Google Photos - All your photos are backed up safely, organized and labeled automatically, so you can find them fast, and share them how you like.
4K Slideshow Maker - Free app to create slideshows.