🔗 P2P File Transfer (Hybrid)

A secure, fast, and browser-based file sharing system built using Python & Django. It supports direct peer-to-peer transfer and a backup Upload & Share mode, so file sharing always works — no matter the network.

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📌 What is this project?

P2P File Transfer allows users to share files in two smart ways:

🔁 1. Peer-to-Peer (P2P) Mode

• Files are sent directly from sender to receiver
• Works best on same Wi-Fi / local network
• Extremely fast ⚡
• No server storage involved
• End-to-End Encrypted

☁️ 2. Upload & Share Mode

• Used when P2P is not possible (different networks / offline user)
• File is encrypted and uploaded temporarily
• A secure shareable link is generated
• File is auto-deleted after a short time

This hybrid approach ensures the transfer never fails.

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🧠 Why is this useful? (Simple words)

• 🚫 No need for Google Drive, WhatsApp, or Email
• ⚡ Much faster than cloud apps on local Wi-Fi
• 🔐 Files stay private with encryption
• 🌍 Works on any modern browser (mobile & desktop)
• 🧪 Great real-world project for learning networking concepts

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✨ Features

🔄 Transfer Modes

• ✅ Live P2P Transfer (WebRTC based)
• ✅ Upload & Share fallback mode

🔐 Privacy & Security

• End-to-End Encryption (E2EE) for P2P transfers
• Encrypted storage for uploaded files
• Private rooms using unique Room IDs
• No account or name required

📁 File Handling

• Chunk-based transfer (handles large files safely)
• Real-time progress bar & speed indicator
• Auto cleanup of uploaded files

🖥️ User Interface

• Dark mode with modern UI
• Mobile & desktop responsive
• Separate tabs for Send / Receive / Settings

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🧩 Tech Stack

• Backend: Django (Python)
• Realtime: Django Channels + WebSockets
• P2P: WebRTC
• Encryption: Web Crypto API / Fernet
• Frontend: Vanilla JavaScript + CSS

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⚙️ Run Locally

1️⃣ Clone the repository

git clone https://github.com/ShivamXD6/P2P_File_Transfer
cd path/to/root/directory
pip install uv

2️⃣ Rename env.example to .env and modify it

SECRET_KEY="example_secret_key"  # https://stackoverflow.com/a/57678930
ENCRYPTION_KEY="example_encryption_key"  # https://cryptography.io/en/latest/fernet/#cryptography.fernet.Fernet
DEBUG=True  # For development

3️⃣ Run database migrations

python -m uv run manage.py migrate

4️⃣ Start the development server

python -m uv run manage.py runserver 0.0.0.0:8000

5️⃣ Open in browser

localhost:8000

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🖼️ Screenshots

🔁 Peer-to-Peer Transfer Mode

☁️ Upload & Share Mode