Crdt Open Source Projects

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.

The local-first database that runs on every JS runtime and replicates with your existing backend - no vendor, no lock-in - https://rxdb.info/

Shared data types for building collaborative software

An open source cybersecurity protocol for syncing decentralized graph data.

A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.

The agent platform built on sync.

Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network

Peer-to-Peer Databases for the Decentralized Web

Broadcast, Presence, and Postgres Changes via WebSockets

🧩 Content editing tech stack for the web - BlockSuite is a toolkit for building editors and collaborative applications.

Make your JSON data collaborative and version-controlled with CRDTs

Library for building distributed, real-time collaborative web applications

Realtime infrastructure for multiplayer apps and agents

Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite

Roshi is a large-scale CRDT set implementation for timestamped events.

A full-stack, syncing database that runs on both server and client. Pluggable storage (indexeddb, sqlite, durable objects), syncs over websockets, and works with your favorite framework (React, Solid, Vue, Svelte).

JavaScript replicated model (M of MVC) library

The Yjs CRDT WebSocket backend for conflict-free real-time collaboration in your app.

Share your workspace with team members and collaborate on code in real time in Atom

Rust port of Yjs

🐙 OctoBase is the open-source database behind AFFiNE, local-first, yet collaborative. A light-weight, scalable, data engine written in Rust.

TypeScript library and local-first platform

SyncedStore CRDT is an easy-to-use library for building live, collaborative applications that sync automatically.

The world's fastest CRDT. WIP.

a collection of well-tested, serializable CRDTs for Rust

A collection of awesome CRDT resources

Build p2p collaborative applications without any server infrastructure in Node.js

@IceFireLabs -> IceFireDB is a database built for web3.0 It strives to fill the gap between web2 and web3.0 with a friendly database experience, making web3 application data storage more convenient, and making it easier for web2 applications to achieve decentralization and data immutability.

json-joy is a library that implements cutting-edge real-time and collaborative editing algorithms and utilities for JSON data models, with a focus on developing the JSON CRDT (Conflict-free Replicated Data Type) specification and implementation.

A standalone yjs server with persistence to S3 or filesystem.

The vibe coding database runs in the browser, fits in the context window, and syncs anywhere.

Yorkie is a document store for collaborative applications.

A highly-configurable, distributed, realtime database that manages a state tree shared among many peers.

A tool for building distributed applications.

Prototype implementation of Lasp in Erlang.

Collaborative web-based rich text editor

A planet scale, highly available, transactional database built on CRDT technology

DefraDB is a Peer-to-Peer Edge-First Database. It's the core data storage system for the Source Ecosystem.

Commutative Replicated Data Types for easy collaborative/distributed systems.

Use Matrix as a backend for local-first applications with the Matrix-CRDT Yjs provider.

String-wise sequence CRDT powering peer-to-peer collaborative editing in Teletype for Atom.

CRDT and WebRTC based real-time, peer-to-peer, collaborative text editor

Typing in Tandem. Decentralized, cross-editor, collaborative text-editing!

📝 Online editor providing collaborative editing in really real-time using CRDTs and IPFS.

Use DeltaCrdt to build distributed applications in Elixir

A distributed go-datastore implementation using Merkle-CRDTs.

CRDTs for common data structures like maps, vecs, sets, text, and JSON

Go version of P2P Database on IPFS

Append-only log CRDT on IPFS

CRDT Tutorial for Beginners (a digestible explanation with less math!)

slatejs collaborative plugin & microservice https://slate-collaborative.herokuapp.com/

Guide, recipes, and protocol specifications for Logux

Convergent replicated datatypes in Erlang

Swift language bindings presenting Automerge

Rich text CRDT that implements Peritext and Fugue

A conflict-free replicated JSON datatype (CRDT) in Scala

A Golang implementation of CRDTs.