Sha. - P2P File Transfer

Sha. Share. Host. Access.

P2P file transfer. No servers. No bullshit.

Use it here:

Click here.

Features

• Direct P2P Transfer: Files are transferred directly between browsers using WebRTC
• No Server Storage: Your files never touch our servers
• Simple Code Sharing: 6-character alphanumeric codes for easy sharing
• Progress Tracking: Real-time progress bar with transfer speed
• No Login Required: Just open and share

How It Works

Sender

1. Open the website
2. Select or drag & drop a file
3. Share the 6-character code with the receiver
4. Wait for the receiver to connect
5. Transfer happens automatically

Receiver

1. Open the website
2. Switch to "Receive" mode
3. Enter the 6-character code
4. Click "Connect"
5. File downloads automatically when transfer completes

Tech Stack

• Frontend: Vanilla HTML/CSS/JavaScript
• P2P: PeerJS for WebRTC signaling
• Hosting: Cloudflare Pages

Local Development

Simply open index.html in a browser, or serve with any static file server:

# Using Python
python -m http.server 8000

# Using Node.js
npx serve

Architecture

┌─────────────────────────────────────────────────────────┐
│                   Cloudflare Pages                       │
│                   (Static Files)                         │
└─────────────────────────────────────────────────────────┘
                           │
        ┌──────────────────┴──────────────────┐
        ▼                                      ▼
┌───────────────┐                      ┌───────────────┐
│    SENDER     │                      │   RECEIVER    │
│   Browser     │                      │   Browser     │
│               │    PeerJS Cloud      │               │
│  1. Select    │◄────(Signaling)─────►│  3. Enter     │
│     file      │                      │     code      │
│  2. Get code  │                      │               │
│               │◄═══════════════════►│               │
│               │   Direct WebRTC      │  4. Download  │
│               │   (P2P Transfer)     │               │
└───────────────┘                      └───────────────┘

Performance Optimizations

• Binary ArrayBuffer transfers (33% smaller than base64)
• 64KB chunk size (optimal for WebRTC data channels)
• Flow control with bufferedAmount monitoring
• Minimal protocol overhead (metadata once, then raw chunks)

File Structure

/
├── index.html          # Main HTML
├── css/
│   └── style.css       # Styling
├── js/
│   ├── app.js          # Main app logic
│   ├── sender.js       # Sender functionality
│   └── receiver.js     # Receiver functionality
└── README.md           # This file

License

MIT

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Contributors

Made by @Yashas.VM | Co-Powered by Claude