KS Code - Online Code Collaboration Platform

A real-time collaborative code editor that enables developers to write, share, and edit code together seamlessly. Built for pair programming, technical interviews, code reviews, and remote team collaboration.

🌟 Features

Real-Time Collaboration

• Live Code Synchronization - See changes as teammates type in real-time
• Multi-User Support - Multiple developers can work on the same codebase simultaneously
• Cursor Tracking - View collaborators' cursor positions and selections
• Instant Updates - All changes are synced instantly across all connected clients

Code Editor

• Syntax Highlighting - Support for multiple programming languages
• Monaco Editor Integration - Powered by the same editor as VS Code
• Auto-completion - Intelligent code suggestions
• Theme Support - Choose from light and dark themes

Collaboration Tools

• Room-Based System - Create or join coding rooms with unique IDs
• User Identification - Set custom usernames to identify collaborators
• Session Management - Persistent sessions for ongoing projects
• Share Links - Easy sharing with just a room ID

Developer-Friendly

• No Sign-Up Required - Start coding immediately
• Clean Interface - Intuitive and distraction-free design
• Responsive Design - Works seamlessly on desktop and tablet devices
• Fast Performance - Optimized for smooth real-time collaboration

🚀 Live Demo

Try it out: https://ks-code.vercel.app

🛠️ Tech Stack

Frontend

• React.js - UI library for building interactive interfaces
• HTML5 & CSS3 - Modern web standards
• Monaco Editor - Advanced code editing capabilities
• Socket.IO Client - Real-time bidirectional communication

Backend

• Node.js - JavaScript runtime environment
• Express.js - Web application framework
• Socket.IO - WebSocket library for real-time features
• CORS - Cross-origin resource sharing support

Deployment

• Vercel - Frontend and backend hosting
• Git - Version control

📦 Installation

Prerequisites

• Node.js (v14 or higher)
• npm or yarn package manager

Clone the Repository

git clone https://github.com/Krishna41357/ks_code-online-code-collaboration-platform.git
cd ks_code-online-code-collaboration-platform

Install Dependencies

For the Client

cd client
npm install

For the Server

cd ../server
npm install

Environment Variables

Create a .env file in the server directory:

PORT=5000
NODE_ENV=development

Create a .env file in the client directory:

REACT_APP_BACKEND_URL=http://localhost:5000

🎯 Usage

Start the Development Server

Terminal 1 - Start Backend

cd server
npm start

Terminal 2 - Start Frontend

cd client
npm start

The application will be available at:

• Frontend: http://localhost:3000
• Backend: http://localhost:5000

Using the Platform

1. Create a Room

   • Enter a unique room ID
   • Set your username
   • Click "Join Room"

2. Invite Collaborators

   • Share the room ID with teammates
   • They can join using the same room ID

3. Start Coding

   • Write code in the editor
   • See real-time updates from collaborators
   • Track cursor positions and edits

4. Collaborate

   • Multiple users can edit simultaneously
   • All changes sync automatically
   • No conflicts or overwriting

🏗️ Project Structure

ks_code-online-code-collaboration-platform/
├── client/                 # React frontend application
│   ├── public/            # Static files
│   ├── src/               # Source files
│   │   ├── components/    # React components
│   │   ├── context/       # React context providers
│   │   ├── socket/        # Socket.IO client setup
│   │   └── App.js         # Main application component
│   └── package.json       # Frontend dependencies
│
├── server/                # Node.js backend application
│   ├── index.js           # Express server entry point
│   ├── socket.js          # Socket.IO event handlers
│   └── package.json       # Backend dependencies
│
├── frontend/              # Additional frontend assets
└── .gitignore            # Git ignore rules

🔧 Configuration

Socket.IO Configuration

The server uses Socket.IO for real-time communication. Key events include:

• join-room - User joins a coding room
• code-change - Code editor content changes
• cursor-position - Cursor position updates
• user-joined - New user notification
• user-left - User disconnection notification

CORS Setup

The server is configured to accept connections from the frontend origin. Update CORS settings in server/index.js if needed:

const corsOptions = {
  origin: process.env.FRONTEND_URL || 'http://localhost:3000',
  credentials: true
};

🤝 Use Cases

• Pair Programming - Collaborate with teammates on the same code
• Technical Interviews - Conduct live coding interviews
• Code Reviews - Review code together in real-time
• Teaching & Learning - Teach programming concepts interactively
• Hackathons - Quick collaboration without setup
• Debugging Sessions - Troubleshoot issues together
• Remote Teams - Seamless distributed development

🔐 Security Considerations

• Room IDs provide basic access control
• No persistent data storage (privacy-focused)
• Sessions are temporary and in-memory
• No authentication required for quick access
• HTTPS in production (via Vercel)

🚧 Roadmap

• Language-specific syntax highlighting improvements
• File upload and download functionality
• Integrated terminal for code execution
• Voice and video chat integration
• Code execution and output preview
• Multiple file support
• User authentication (optional)
• Room password protection
• Code history and version control
• Whiteboard for visual collaboration
• Mobile app support

🤝 Contributing

Contributions are welcome! Here's how you can help:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

Development Guidelines

• Follow existing code style and conventions
• Write clear commit messages
• Test your changes thoroughly
• Update documentation as needed
• Ensure backward compatibility

📝 License

This project is licensed under the MIT License - see the LICENSE file for details.

👤 Author

Krishna

• GitHub: @Krishna41357
• Website: ks-code.vercel.app

🙏 Acknowledgments

• Monaco Editor - Code editor component
• Socket.IO - Real-time communication library
• React - Frontend framework
• Express.js - Backend framework
• Vercel - Deployment platform

📧 Support

If you encounter any issues or have questions:

1. Check existing Issues
2. Create a new issue with detailed information
3. Reach out via GitHub Discussions

⭐ Show Your Support

If you find this project helpful, please consider giving it a star on GitHub!

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Built with ❤️ for developers, by developers
_{Making remote collaboration seamless}