Shared data types for building collaborative software

A collaborative note taking, wiki and documentation platform that scales. Built with Django and React.

A React Rich Text Editor that's block-based (Notion style) and extensible. Built on top of Prosemirror and Tiptap.

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

PartyKit simplifies developing multiplayer applications

Open-source and local-first Slack and Notion alternative that puts you in control of your data

Liveblocks gives you the building blocks and infrastructure to enable people and AI to work together inside your app.

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

Rust port of Yjs

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

DocFlow is an AI-powered documentation platform built with Tiptap and Next.js, designed for real-time collaboration ⚡, smart writing assistance 🤖, and a flexible plugin system 🔌.

A realtime CRDT-based document store, backed by S3.

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

Websocket Connector for Yjs

A local-first LaTeX & Typst web editor with real-time collaboration & offline support

WebRTC Connector for Yjs

Yjs binding for Slate

SuperViz provides powerful SDKs and APIs that enable developers to easily integrate real-time features into web applications. Our platform accelerates development across various industries with robust, scalable infrastructure and a low-code approach.

Web metaverse client

Yboard is a multiplayer desktop-like workspace based on Yjs

Realtime Collaborate Editor with Embedded Compiler

IndexedDB database adapter for Yjs

Online Collaboration Excel

💬 cursor chat à la Figma for digital co-existing + presence

Real-time collaboration with Yjs on Cloudflare Workers using Durable Objects, eliminating Node.js dependencies. Inspired by y-websocket

Source code for pytogether.org — A fully browser-based collaborative IDE with real-time editing, live drawing, and voice chat.

Simple react hooks to manage multiplayer presence using Yjs

CRDTs based on Yrs.

A compatible .Net implementation of the Yjs CRDT framework.

Free, open source library to build real-time collaboration applications like whiteboards, diagram editors, etc. on HTML5 Canvas with your own UI