Etherpad: A modern really-real-time collaborative document editor.

云策文档是一款开源知识管理工具。通过独立的知识库空间，结构化地组织在线协作文档，实现知识的积累与沉淀，促进知识的复用与流通。

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

Textbus 是一个组件化的、数据驱动的富文本框架，支持在线协同编辑，拥有非常好的扩展性和可定制性，可使用 Viewfly、Vue 或 React 直接渲染富文本，是构建复杂富文本的不二之选！

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.

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

Collaborative music composition for everyone.

Yjs binding for Slate

A Notion-like editor built with blocks.

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

Web-based P2P collaborative editor for live coding sounds and images

A multi cursor module for Quill text editor.

An online blackboard 🖉 with fridge magnets 🌈🧲 for teaching, and making animations 🏃 and presentations ⎚. All of that in a lightweight user interface, and without coding.

Real-time collaborative code editing on your own infrastructure

a scalable collaborative document editor with CRDT, P2P and E2EE

App for editing and sharing documents online, with a Notion-like block-based collaborative editor.

Multi-platform, type-safe realtime packages

🌐 Visualize and explore IaC ✒️ Create and share notes in VS Code 🤝 Sync notes and findings in real-time with friends

A collection of Algorithms to Synchronise changes across multiple clients using Operational Transformation