Automerge

Automerge is a local-first synchronization engine designed for building multiplayer applications that function seamlessly offline. It provides a robust solution for managing data across multiple users and devices, ensuring a single source of truth that is mirrored on every client. The core functionality revolves around its ability to prevent data conflicts through consistent merging, even when users make overlapping edits, and to maintain a complete version history of all changes locally. This engine is built for developers who need to create collaborative applications with high performance and reliability. It supports millions of changes in a single document using a compressed columnar store, ensuring speed and efficiency. Automerge is compatible with existing development stacks, including popular frameworks like React, and offers plugins for tools like Prosemirror and Codemirror. It's flexible in how data is synced, supporting peer-to-peer, client-server, and even file-based transfers. Developed by a team with deep expertise in distributed systems, Automerge is an open-source project committed to long-term stability and correctness, backed by rigorous academic proofs and cutting-edge performance techniques.