📡 P2P File Transfer via WebRTC

A peer-to-peer (P2P) file transfer web application built with WebRTC, enabling direct file sharing between two devices without a server intermediary for the file data. The app uses Node.js for signaling and HTML/CSS for the frontend.

🚀 Features

• 🔁 P2P File Transfer – Direct transfer between devices using WebRTC DataChannels.
• 🆔 Session ID Based Connection – Sender generates a session ID, and the receiver enters it to connect.
• 🖱️ Drag & Drop File Sharing – Intuitive drag and drop interface for file uploads.
• 🔐 End-to-End Encryption – Ensures privacy and data protection during transfer.
• 💬 Minimal Signaling Server – Built with Node.js and Socket.IO for connection setup only.

🧰 Tech Stack

• Frontend: HTML,CSS
• Backend: Javascript+Socket.IO
• Real-Time Communication: WebRTC

📷 Demo

Here’s how the file transfer looks in action:

🛠️ How It Works

1. Sender opens the app and generates a session ID.
2. Receiver opens the app and enters the session ID (or scans QR).
3. A WebRTC connection is established using a signaling server.
4. Files are transferred directly using WebRTC DataChannels.

⚠️ Limitations

This project was developed during a 24-hour FOSS hackathon, and as such, there are a few limitations due to the restricted development time:

• 📂 Single File Transfer Only – Currently supports sending one file at a time.
• ❌ No Transfer Resume – Interrupted transfers cannot be resumed.
• 📶 Unstable Connection on Poor Networks – Performance may degrade on unstable or slow internet.

We plan to address many of these in future iterations or open it up for community contributions!