Overview

RxDB is a local-first database for JavaScript applications that stores and queries data directly on the client. It provides a reactive API for instantly updating the UI as data changes, enabling smooth, real-time experiences without waiting for network responses. RxDB works across browsers, mobile apps, and desktop environments, giving developers a unified local database layer for modern applications. The RxDB Supabase plugin connects client-side RxDB databases directly to Supabase’s managed Postgres servers. It synchronizes data continuously between local clients and Supabase, ensuring that every change made offline or online is replicated across devices in real time. The plugin integrates seamlessly with Supabase Auth, Realtime, and Row Level Security, so user-specific permissions and live updates work out of the box. Conflict resolution and sync logic are handled automatically by RxDB, allowing developers to focus on building product features rather than managing complex data flows. Start building local-first, reactive applications today with RxDB and Supabase.