💬 UDP Terminal Messenger

A lightweight, console-based messenger built with Python using the UDP protocol. It allows real-time communication between a client and a server directly through the terminal.

---

🚀 Features

• Bidirectional Communication: Full-duplex messaging (both sending and receiving).
• UDP Protocol: Data transfer using port 5005.
• Customizable Identity: Change your display name on the fly within the app.
• Port Management: Dedicated option to open/bind a port for incoming connections.
• Zero Dependencies: Runs on vanilla Python using standard libraries (socket, threading).

IMPORTANT!

⚠️ Connection Note (Carrier-Grade NAT / Private IP)

If you have a "Gray" (Private/CGNAT) IP address, direct connection over the internet will not work. In this case, you must use Radmin VPN, Hamachi, or a similar tool to create a virtual local network with your friend before connecting.

📸 Preview

🛠 Tech Stack

• Language: Python 3.11
• Networking: socket library
• Concurrency: threading (for simultaneous listen/send)

📦 Installation & Usage

1. Clone the repository:

   git clone https://github.com/qualzed/qChat
   cd qChat

2. Run the application:

   python main.py

⌨️ How it Works (Menu Options)

1. Connect: Enter the target IP address to start chatting.
2. Change Name: Set a custom nickname for the session.
3. Send Message: Type your text and hit Enter.
4. Open Port: Activate the listener on port 5005 to wait for incoming messages.