RxDB

RxDB is a high-performance, local-first NoSQL database designed for modern JavaScript applications. It enables you to build applications that are fully functional offline, with data stored directly on the client. This local-first approach means your app remains fast and responsive, regardless of network connectivity, while data is seamlessly replicated in the background. You can sync with any backend or even build a completely serverless application.

One of its standout features is its reactive nature. In RxDB, everything is an observable stream—from query results to individual document fields. This makes building real-time user interfaces incredibly straightforward, as your UI automatically updates whenever data changes. It's built to be versatile, running in any JavaScript environment and offering a modular architecture.

Key benefits include:

• Offline-First Functionality: Keep your application running smoothly without an internet connection.
• Real-Time Queries: Data changes are automatically pushed to your UI.
• Backend Agnostic: Synchronize data with any GraphQL, REST, or custom backend.
• Cross-Platform: Use the same database logic across web, mobile, and desktop apps.