🛡️ Port Scanner

🔍 Overview

A minimal C++ port scanner using Qt. Clean and responsive GUI for scanning open TCP ports.

🚀 Features

• Built with Qt Creator for performance and cross-platform support
• Input an IP address and scan a range of TCP ports
• Uses QTcpSocket with asynchronous UI updates
• Displays response time for each open port

🛡️ How Port Scanner Works

The program uses QTcpSocket to attempt TCP connections to a range of ports on a specified IP address. If the connection succeeds, it is considered “open” and the response time is recorded.

📸 Preview

💻 Demo

Enter IP address: 127.0.0.1  
Enter start port: 1  
Enter end port: 200

Scanning 127.0.0.1 from port 1 to 200...  
Port 22 is open (Response Time: 9 ms)  
Port 80 is open (Response Time: 13 ms)  
Port 135 is open (Response Time: 15 ms)  

📂 Python Version:

⬇️ See Python port scanner script for a CLI-based implementation.

🔗 View Code

• 🔧 Source Code on GitHub