🚀 Mixcore CMS is an Future-Proof Enterprise Web CMS that supports both headless and decoupled to easily build any kinds of app/web app/all in all/customizable APIs built on top of ASP.NET Core / Dotnet Core. It is a completely open-source ASP.NET Core (Dotnet Core) CMS solution. https://mixcore.org

Clorabase is a free backend (BaaS) alternative for android apps. Use Databases,Storage,Push messaging, In-App messaging and lot more engage features for free without creating an account

Therus endeavors to create an open-source, self-hosted platform that mirrors the functionality of Firebase's real-time and document-oriented database structures. This pursuit addresses a gap often found in purported alternatives to Firebase, offering a comprehensive solution for users seeking comparable features in a self-hosted environment.

Postgres-based key-value database backend server, perfect for simple applications that need basic cloud storage / syncing