free4.chat is a real-time audio chat service. It is designed by the local first and privacy first principle, and is very easy to use.

A Jupyter Server Extension Providing Support for Y Documents

Live collaborative coding in Neovim, written 100% in lua.

This is a collaborative whiteboard that allows real-time communication through sockets. It was built using Next.js and Spring Boot. Users can share a room and draw on canvas which will be updated on every user's screen.

DocNode is a high-performance CRDT with emphasis on DX (work in progress).

🥈 Real-time, cross-platform, collaborative code editor.

Real-time collaborative editing system with MERN - A system designed to help anyone who wants to create collaborative editing systems in real-time. Every basic feature is included and it can be freely used.

CodeHiveNG is a real-time collaborative coding platform with multi-language support, live code execution, secure authentication, and seamless file management. Built with React, Node.js, and Pusher for instant updates, it’s optimized for teams and individuals.

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

NoteScape is an AI-powered note-taking app that combines real-time collaboration with intelligent features. It leverages Meta's Llama model for features like smart translation and context-aware Q&A, while enabling seamless teamwork through live cursors and shared editing.

【毕设警告】实时协作文档编辑系统

Discover a Figma clone using Fabric.js and Liveblocks for real-time collaboration. Experience seamless design project creation, sharing, and collaboration with the power of Fabric.js and Liveblocks.

This is a [Typing Warrior](Coming Soon) a realtime collaboration typing platform. Compete with your friends, rivals, or random internet people in realtime and see who is a faster typer.

Collaborative Code Playground or CodePlay is a real-time platform where developers can code together seamlessly. Built with React, Tailwind, and TypeScript, it features multi-language support, code execution, and integrated chat functionality—making pair programming, knowledge sharing, and learning from peers effortless.

📻 Toolkit to implement the Operational Tranformation algorithm

DocFlow - A collaborative document editing system

CodeRTC - Real Time Collaboration

Object Synchronisation Service