Real-Time Collaborative Coding Editor

A real-time collaborative coding platform built using React, Node.js, Express.js, and Socket.IO that enables multiple users to join shared rooms and edit code simultaneously with live synchronization across connected clients.

🚀 Features

• Real-time multi-user code collaboration
• Create or join collaboration rooms using unique room IDs
• Instant synchronization of code changes across connected users
• Username-based participant identification
• Shared live editing environment with concurrent user support
• Low-latency communication using Socket.IO
• Syntax highlighting and interactive code editor support
• Optimized socket event handling for efficient shared-state updates

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🛠️ Tech Stack

• Frontend: React.js
• Backend: Node.js, Express.js
• Real-Time Communication: Socket.IO
• Editor: CodeMirror
• Utilities: UUID

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📂 Project Structure

RealTimeCollaborativeCodingEditor/
│── client/
│   ├── src/
│   │   ├── components/
│   │   ├── pages/
│   │   ├── socket/
│   │   └── App.js
│
│── server/
│   ├── socket/
│   ├── routes/
│   ├── server.js
│
│── package.json
│── README.md

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⚙️ Core Functionalities

Real-Time Collaboration

• Multiple users can collaborate in the same room
• Live synchronization of editor state across clients
• Concurrent editing support through event-driven architecture

Room Management

• Generate unique room IDs
• Join existing collaboration rooms
• User identification during active sessions

Socket Communication

• Real-time event broadcasting
• Shared state synchronization
• Optimized socket communication to reduce redundant updates

Code Editor

• Syntax highlighting support
• Interactive coding experience
• Real-time editor updates for all participants

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🔄 Real-Time Workflow

1. User creates or joins a room
2. Socket connection is established
3. Code changes are emitted as socket events
4. Server broadcasts updates to connected users
5. All connected clients stay synchronized in real time

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🌐 Live Demo

Live Application

https://codecast-324z.onrender.com

Demo Video

codeCast.mp4

GitHub Repository

https://github.com/pujitha-mule/RealTimeCollaborativeCodingEditor

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▶️ How to Run the Project

Clone Repository

git clone https://github.com/pujitha-mule/RealTimeCollaborativeCodingEditor.git

Navigate to Project Folder

cd RealTimeCollaborativeCodingEditor

Install Dependencies

Client

cd client
npm install

Server

cd ../server
npm install

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▶️ Start Development Servers

Start Backend Server

npm start

Start Frontend

cd ../client
npm start

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📈 Project Highlights

• Built scalable real-time collaboration using Socket.IO
• Implemented concurrent shared-state synchronization
• Reduced communication latency through optimized socket events
• Designed modular client-server architecture
• Engineered seamless multi-user collaborative editing workflow

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👩‍💻 Author

Pujitha Mule

GitHub: https://github.com/pujitha-mule