📁 Local File Transfer Server (LFT)

A secure, offline-first local file transfer server that runs on your PC’s Wi-Fi hotspot.
Seamlessly share files between PC and mobile devices — no internet required ⚡

🔒 Fully local • 🚀 Fast • 🌐 No cloud • 📱 Mobile-friendly

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📘 Documentation

For detailed architecture, API routes, setup guides, and screenshots, visit:

👉 LFTDocs: https://lftdocs.netlify.app/

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✨ Features

• 🔐 Secure Login – Password-protected admin dashboard
• 📱 Mobile-Friendly – Responsive interface for phones
• 🔄 Two-Way Transfer – Upload and download files between any device
• 📊 QR Code Connect – Scan to join Wi-Fi and access instantly
• 🎨 Modern Dark UI – Clean, simple design
• 🚀 Offline Support – Works fully offline via your hotspot

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📋 Prerequisites

• 🐍 Python 3.7 or higher
• 💻 PC with Mobile Hotspot capability
• 📱 Any smartphone with a QR code scanner

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🔒 Security

• ✅ Login protected dashboard
• ✅ Credentials stored securely in .env
• ✅ Only works on your local hotspot network
• ⚠️ Do not expose to the internet
• ⚠️ Change default passwords before use

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🖼️ Screenshots

Login Page

Server

PC Upload

Mobile Upload

PC Download

Mobile Download

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🚀 Installation

• Clone the Repository

git clone https://github.com/Patel-Priyank-1602/file-transfer.git
cd hotspot-file-server

• Install Dependencies

pip install flask python-dotenv qrcode pillow

• Configure Environment Variables

# --- Hotspot Details ---
HOTSPOT_SSID=YourHotspotName
HOTSPOT_PASSWORD=YourHotspotPassword
HOTSPOT_IP=YourHotspotIp
PORT=8000

# --- Admin Credentials ---
ADMIN_USERNAME=admin
ADMIN_PASSWORD=your_secure_password

# --- App Settings ---
SECRET_KEY=your_secret_key_change_this
UPLOAD_FOLDER=shared_files

• Find Your Hotspot IP

Windows, macOS

ipconfig

Linux

ip addr show

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🗂️ Project Structure

FILE_TRANSFER/
├─ Screenshot/
├─ shared_files/
│  └─ .temp/
├─ templates/
│  ├─ chat_app.html
│  ├─ dashboard.html
│  ├─ files.html
│  └─ login.html
├─ .env
├─ .gitignore
├─ app.py
├─ README.md
└─ site_config.json