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About Zero Sync

Zero is a software solution designed to enable developers to build web applications with instant user interfaces by leveraging a sync-based architecture. It addresses the challenges of traditional sync engines, which struggle with large datasets and complex permissions, by providing a general solution for syncing only the necessary data. The product consists of two main components: zero-client and zero-cache. Zero-cache maintains a read-only replica of your Postgres database in the cloud, while zero-client creates a local store of recently used rows within your application. Queries are first executed against this client-side store for instant results, and then asynchronously sent to the server for authoritative data. Server results are subsequently cached client-side, ensuring future queries are also instant. This approach, powered by a new streaming query engine called ZQL, allows for precise control over data syncing, leading to fast startup times and highly reactive user experiences. It's ideal for developers looking to create highly performant web applications that feel instantaneous to the end-user, without the complexities of manual state management or real-time infrastructure.