garden-co/classic-jazz

Health v2 · maintenance only

Adoption not part of the score

2532 stars · 111 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Classic Jazz is a distributed, local-first database that syncs structured data, files, and streams across frontends, containers, serverless functions, and its own storage cloud. It exposes data as reactive local JSON-like state (CoValues) with built-in auth, permissions, edit history, E2E encryption, and offline support. Note: the project recommends Jazz v2 for new projects.

Use cases

• build a real-time multiplayer app with synced state
• add offline-first data sync to a React or Svelte app
• replace a backend with client-side synced database state
• build a collaborative editor or chat app with edit history
• sync data between frontend, serverless functions, and cloud storage
• encrypt user data end-to-end in a local-first app
• build a React Native app that works offline and syncs

When to choose

• you want local-first, offline-capable apps with instant multi-device sync
• you want reactive state that behaves like local JSON without manual backend plumbing
• you need built-in auth, permissions, and E2E encryption out of the box
• you want to self-host sync infrastructure or use a managed cloud

When to avoid

• you are starting a new project - the maintainers recommend Jazz v2 instead
• you need a traditional relational database with SQL queries and joins
• your app is server-centric with complex privileged backend logic over user data
• you need mature, battle-tested tooling for large enterprise workloads

Facets

library · maturity maintenance

database state-management caching auth websocket cryptography databases web-development frontend microservices privacy browser cross-platform cloud self-hosted local-first offline-first crdt sync-engine reactive-state end-to-end-encryption multiplayer serverless react-native svelte real-time nodejs react web-server

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markdown · JSON · MCP: product_card(name="garden-co/classic-jazz")