Speed - Instant Peer-to-Peer File Transfer

Speed is a secure, real-time, peer-to-peer (P2P) file transfer application inspired by the convenience of AirDrop. It enables users to transfer files of any size directly between two computers using only a browser and a unique, short-lived room ID, ensuring complete privacy and lightning-fast transfers.

Note: Speed currently supports PC-to-PC transfers only. Mobile and cross-device functionality is not yet supported. Also, ensure both the sending and recieving computers are on the same WI-FI/network. Cross-network is not supported.

🔗 Website link: https://speed-v3.vercel.app

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✨ Key Features

• Instant P2P Transfers: Files are sent directly from one browser to another using WebRTC, bypassing servers for maximum speed and minimal latency.
• Secure & Private: End-to-end encrypted connections ensure no files are stored on servers, keeping user data completely private.
• Multi-File Support: Select and send multiple files at once, automatically bundled into a single .zip archive using JSZip for seamless transfers.
• Custom Room IDs: Generates short, memorable, and custom IDs for easy sharing and connection.
• Responsive UI: A modern, professional interface built with Radix UI and styled with Tailwind CSS, optimized for both desktop and mobile devices.

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🏛️ Architectural Overview

Speed is built on a decoupled architecture, separating client interaction and peer-to-peer connection brokering for scalability and maintainability.

• React Frontend (Client): A single-page application built with React and TypeScript, handling file selection, zipping, and WebRTC data connections via the PeerJS client library. Deployed as a static site on Vercel.
• PeerJS Signaling Server (Backend): A lightweight Node.js and Express server running a PeerJS server instance. It acts as a "matchmaker," facilitating the initial WebRTC handshake between clients without handling file data. Deployed on Render.
• WebRTC Data Channel: Once peers are connected, a direct, encrypted WebRTC data channel handles all file transfers, ensuring speed and privacy.

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🚀 Getting Started

Follow these steps to set up and run the project locally. Ensure you have Node.js and npm installed.

1. Clone the Repository

git clone https://github.com/Adiii581/speed-v3.git
cd Speed

2. Run the Backend Server

The signaling server must be running to facilitate WebRTC connections.

cd server
npm install
npm run dev

The server will be available at http://localhost:4002.

3. Run the Frontend Client

Open a new terminal window to start the client.

cd client
npm install
npm run dev

The application will be available at http://localhost:3000 (or another port if 3000 is in use).

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🛠️ Technology Stack

Area	Technologies
Frontend	React, TypeScript, Vite, Tailwind CSS, Radix UI, Lucide React, JSZip, PeerJS (client)
Backend	Node.js, TypeScript, Express, Peer (PeerJS Server)
P2P Comms	WebRTC

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📚 Why Speed Stands Out

• Performance: Leverages WebRTC for direct, low-latency file transfers, avoiding server bottlenecks.
• Privacy-First: End-to-end encryption and no server-side storage ensure user data remains secure.
• User-Friendly: Intuitive UI with custom room IDs simplifies the file-sharing process.
• Scalable Design: Decoupled architecture allows for easy maintenance and future enhancements.

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📬 Contact

For questions, feedback, or contributions, please reach out by connecting with me on LinkedIn.

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Built with 💻 by Aditya Chhabria