GUN is a real-time, decentralized, offline-first, graph database engine.
Free and open-source
Best Automerge Alternatives ranked by AI · updated Aug 2026
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Automerge is an open-source local-first library for synchronizing JSON-like documents with CRDT-based conflict resolution. It is aimed at developers building collaborative and offline-capable applications who want deterministic merges without a central database.
Top 6 Automerge alternatives
Apache CouchDB is an open-source database software that focuses on ease of use and replication. It allows for seamless multi-master syncing and...
RxDB is a realtime database for JavaScript applications. It is designed to handle complex data structures, synchronization, and offline-first capabilities.
Free and open-source
PouchDB is an open-source JavaScript database that syncs data across devices.
3Box is a distributed user data storage solution for web3 applications.
Free tier available, pricing for higher usage
OrbitDB is a peer-to-peer database built on IPFS for applications that need replicated, content-addressed data without a central server. It is aimed...
Pros
- Native IPFS integration provides content addressing and peer-to-peer replication
- Supports logs, key-value stores, feeds, and document-style data models
- Works without a central database server and supports offline operation
Cons
- More complex networking and replication behavior than hosted databases
- Eventual consistency requires application-level conflict handling
- Smaller ecosystem and fewer managed services than CouchDB or Firebase
Free, open source
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