Port Listener 2.0

Port Listener is a free, lightweight utility designed to listen on specified TCP ports, helping you troubleshoot network connections, detect port activity, and analyze incoming data. New in version 2.00, the tool now supports real-time visibility of TCP/IP connections and can even respond to incoming HTTP requests with HTML responses: great for confirming remote reachability. Whether you are a developer, system administrator or security analyst, Port Listener is an indispensable tool in your toolkit.

This software is for:

• Developers & IT Professionals: Test network communication between applications.
• Network administrators: Troubleshoot connectivity issues and validate port availability.
• Network security analysts: Analyze incoming data for security testing and packet inspection.
• General users: Easily check if a port is blocked or accessible.

Key features

• TCP Port Listening: Instantly listens on any specified TCP port.
• New! View live TCP/IP connections: See which remote servers are connected in real time.
• New! Integrated HTTP responses: Send HTML responses to incoming HTTP requests to confirm reachability.
• Real-time data visualization: Monitor incoming data as it arrives.
• Multiple instances support: Monitor multiple ports at once.
• System tray mode: Keep your workspace clean while running in the background.