📁 Network File Server

A lightweight local network file server built with Node.js and Express that lets you upload, browse, and download files between devices on the same network using their IP addresses — no FTP client needed, just a web browser.

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Features

• 📤 Upload files from any device on the same network
• 📥 Download files directly via browser
• 🌐 Web-based UI — no software installation required on the client side
• 🔍 Lists all available files with size and last modified date
• 📡 Accessible via local IP address from any device on the LAN

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Prerequisites

• Node.js (v14 or higher)
• npm

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Installation

1. Clone or download this project to your machine.

2. Install dependencies:

   npm install

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Usage

1. Start the server:

   node server.js

2. The terminal will display the server addresses:

   =====================================
   Network File Server Started!
   =====================================
   Local access:   http://localhost:3000
   Network access: http://192.168.x.x:3000
   =====================================
   

3. Access the server:

   • On the same machine: open http://localhost:3000 in your browser.
   • On another device (phone, laptop, etc.) on the same Wi-Fi/network: open http://<server-IP>:3000 in a browser.

4. Transfer files:

   • Use the Upload section to send a file to the server.
   • Use the Download button next to any file to receive it.

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Project Structure

ftp-server/
├── server.js        # Main server file
├── package.json     # Project metadata and dependencies
└── uploads/         # Directory where uploaded files are stored (auto-created)

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API Endpoints

Method	Endpoint	Description
GET	/	Serves the web interface
POST	/upload	Upload a file
GET	/list	Returns list of files (JSON)
GET	/download/:filename	Download a specific file

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Dependencies

Package	Version	Purpose
express	^5.2.1	Web server framework
multer	^2.0.2	Handling multipart file uploads

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Configuration

You can change these values at the top of server.js:

Variable	Default	Description
PORT	3000	Port the server listens on
UPLOAD_DIR	./uploads	Folder where files are saved

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Notes

• Both devices must be on the same local network (same Wi-Fi or LAN).
• Uploaded files are saved with their original filenames. Uploading a file with the same name will overwrite the existing one.
• This server has no authentication. Do not expose it to the public internet.

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