An open source web based photo album organizer. A fork/ revival of the original Gallery software project. http://galleryproject.org/ Now Gallery Revival, or Gallery 3. Updated on github.
Zenphoto Alternatives
Zenphoto is described as 'Media website management the easy way!' and is an app. There are more than 25 alternatives to Zenphoto for a variety of platforms, including Self-Hosted, Web-based, Mac, Windows and Linux apps. The best Zenphoto alternative is PhotoPrism, which is both free and Open Source. Other great apps like Zenphoto are Piwigo, MediaGoblin, LibrePhotos and Nextcloud Photos.