Open Source Alternatives to Firebase Realtime Database

A NoSQL cloud database that stores and syncs JSON data in realtime across all clients. It provides mobile and web SDKs to enable serverless application development and integrates with Cloud Functions for event triggered backend code. The product includes local caching for offline use, which allows the system to serve and store changes on the device and automatically synchronize that data when the device reconnects to the internet. It uses a declarative security model and integrates with Firebase Authentication to manage access based on user identity or pattern matching. This service is designed for developers building collaborative applications that require rapid data consistency across multiple devices, including web and mobile platforms. The infrastructure is fully managed and scalable to support millions of users across different regions.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Firebase Realtime Database give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to Firebase Realtime Database. The most popular is Kinto. It uses the Apache-2.0 license and ships an official Docker image.