The best open source alternative to Flickr is Ente Photos. If that doesn't suit you, our users have ranked more than 100 alternatives to Flickr and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Flickr are PhotoPrism, PixelUnion, Piwigo and LibrePhotos.
Open-source, end-to-end encrypted backup and sharing for photos and videos, multi-platform sync, original quality preservation, privacy-first design, collaborative albums, family sharing, secure external sharing, robust data replication, and device imports.
AI-powered, privacy-centered platform for managing, searching, and organizing photos with automatic tagging, face recognition, RAW support, advanced filters, geocoding, secure backups, Live Photo playback, and private server or cloud hosting options.
PixelUnion is a privacy-focused, EU-based photo storage service alternative to Google Photos. It offers lossless uploads, free 16 GB starter storage, AI-powered face recognition, and more.
Manage your photo collection with Piwigo Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.
Unlike commercial service that store your photos in the cloud and scan/index them to train their machine learning models and collect ad targeting data on you, LibrePhotos keeps all your photos and metadata on your local machine.
Stingle Photos is a secure photo/video encryption and backup application that provides strong security, privacy, encryption and safely saves your media on cloud storage keeping you safe from data breaches and leaks.
Fast, modern and advanced photo management suite. Free and open source Nextcloud app.
ShotShare is an open source, self hosted, bare bones image posting/sharing platform, it was built to allow friends to upload screenshots and send links to their friends without the constant barrage of ads/extraneous features.
Recall is an open-source and decentralized alternative to Google Photos built on top of Blockstack. Photos are stored encrypted with the user's private key and therefore not accessible to anyone else.
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Its a really great "just manaing my own stuff" but the lack of public albums where non-registered users can view read only is a dealbreaker - if they fixed this it would be a great alternative to flickr and smugmug