Immich - immich Self-hosted photo and video backup solution directly from your mobile phone

dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.

PhotoPrism.app - PhotoPrism® is an AI-Powered Photos App for the Decentralized Web. It makes use of the latest technologies to tag and find pictures automatically without getting in your way. You can run it at home, on a private server, or in the cloud.

Duplicate Cleaner - Duplicate Cleaner: the fastest and most popular tool for finding duplicate files. Over 1 million downloads: Get your copy now! Free and Pro versions available.

Piwigo.org - Manage your photo collection with Piwigo. Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.

Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.