Fireproof

lastmod 2025-03-31created 2025-03-311 edits

Realtime database, runs anywhere. Install Fireproof in your front-end app or edge function, and sync data via any backend.

Lightweight embedded DB for the browser

Features

A lightweight embedded document database designed for easy use in browser environments
- Provides encrypted real-time sync
Works with a consistent API not only in frontend frameworks like React but also in various JavaScript runtime environments
Bundles UI, data, and logic into a single file, with no constraints on deployment or runtime environment
- Written in TypeScript; usable in Deno, Bun, Node.js, and the browser
Real-time and offline-first: supports auto-save and live queries
React Hooks support: build live collaboration interfaces with the useLiveQuery and useDocument hooks
Git-style version control
- Guarantees cryptography-based causal consistency using hash history
- Data is stored and replicated as content-addressed encrypted blobs
- Can sync via object storage (S3, etc.)
Advantages of Fireproof over existing embedded databases
- Network-aware, encrypted sync, multi-writer safety guaranteed
- CRDT-based design for real-time collaboration
- Provides cryptographic causal integrity
- Web-first design: small package size, no WebAssembly required
Use Case
- AI-generated apps and rapid prototypes
- Real-time collaborative editors
- Offline/local-first apps
- Personalized settings storage
- Secure state storage for AI copilots
Development approach
- Build the app locally first, then sync through the cloud of your choice later
- Complements LLM-based code generation environments
- An optimal data storage solution for fast development cycles

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