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.
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Updated
Feb 5, 2026 - Elixir
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
DocNode y DocSync Monorepo. Type-safe documents with conflict resolution. Faster than any CRDT.
Real-time, collaborative knowledge graph platform for structured thinking, scientific discourse, and collective intelligence.
Live collaborative coding in Neovim, written 100% in lua.
A collaborative pixel art platform where users can place pixels on a shared canvas in real time, building community-driven images together with live updates and interactive features.
Networked scene editor for FiveM -- spawn props, peds & vehicles, collaborate in real-time rooms, build AI sequences
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.
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.
Real-time, cross-platform, CRDT-based, collaborative code editor.
A Real-time Collaborative Code Editor built with Next.js, Socket.io & Express.js Which Provides a Range of Powerful Features Like Instant Code Synchronization While Code Changes to Across all the Users
Collaborative family tree builder with tldraw: Real-time editing and visualization on diagram
A modern, collaborative whiteboard and drawing tool inspired by Excalidraw
A real-time collaboration web application featuring a whiteboard (powered by tldraw), shared notes (powered by Etherpad), and video/audio communication (powered by LiveKit).
SkyStream delivers secure screen sharing, video calls, chat rooms, and file sharing--all powered by WebRTC. Experience seamless, plug-and-play integration for instant connections. Boost productivity, simplify teamwork, and enhance collaboration with SkyStream's real-time communication features. Perfect for teams and developers!
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.
A self-hosted, open-source alternative to Notion. Block-based editor, real-time collaboration, multi-tenant organisations, and polymorphic storage -- built with Vue 3, Fastify, and PostgreSQL. Your data, your control.
Orange Board is a free collaborative online whiteboard that lets teams, students, and creators brainstorm, draw, and share ideas in real time. Simple, fast, and built for productivity.
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.
AI-powered real-time collaborative text editor with integrated chat, built using Tiptap, Hocuspocus, and Gemini API. Designed for seamless team writing, intelligent summarization, and productivity-focused collaboration.
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