Kavita Cross-platform e-book/manga/comic/pdf server and web reader with user management, ratings and reviews, and metadata support. Self-hostedOpen sourceDocument Management - E-books 11,955GPL-3.0.NETupdated Oct 2026
U Umbraco The friendly CMS. Free and open source with an amazing community. Self-hostedOpen sourceContent Management Systems (CMS) 5,278MIT.NETupdated Oct 2026
Squidex Headless CMS, based on MongoDB, CQRS and Event Sourcing. Self-hostedOpen sourceContent Management Systems (CMS) 2,514MIT.NETupdated Oct 2026
D Damselfly Fast server-based photo management system for large collections of images. Includes face detection, face & object recognition, powerful search, and EXIF Keyword tagging. Runs on Linux, MacOS and Windows. Self-hostedOpen sourcePhoto Galleries 1,795GPL-3.0C#updated Jan 2026
G Gaseous Server Game ROM manager with a built-in web-based emulator using multiple sources to identify and provide metadata. Self-hostedOpen sourceGames - Administrative Utilities & Control Panels 953AGPL-3.0.NETupdated Oct 2026
R RetroArr Game library manager for PC and retro consoles, with metadata scraping, indexer search, download automation and browser-based emulation (alternative to RomM). Self-hostedOpen sourceGames - Administrative Utilities & Control Panels 15MIT.NETupdated Oct 2026
I Iceshrimp.NET Federated microblogging server that communicates over ActivityPub. Self-hostedOpen sourceCommunication - Social Networks and Forums EUPL-1.2.NET