Piwigo

Piwigo is a mature open-source photo gallery management application with over 20 years of development history and a large active community. It offers a complete solution for organizing, sharing, and managing large photo collections with support for albums, tags, geo-tagging, and user permissions.

Piwigo features a powerful plugin architecture with hundreds of extensions available, including mobile apps for iOS and Android, batch upload tools, slideshow players, and social sharing features. It supports multi-user setups with granular permission controls, making it suitable for photography clubs, families, and organizations that need to share photos with different groups.

Licensed under GPL-2.0, Piwigo can be installed on standard LAMP/LEMP web servers or via Docker. It is available as a free self-hosted solution and also as a managed cloud service at piwigo.com. Piwigo is a great Google Photos alternative for users who want a web gallery with a traditional album-based organization structure.