TCPView

TCPView is an essential diagnostic tool from the Microsoft Sysinternals suite that offers a real-time window into your system's network activity. It displays a comprehensive list of all active TCP and UDP endpoints, mapping every connection to its specific process name and ID. Users can monitor local and remote addresses, ports, and the current state of each connection, with color-coded updates that highlight newly opened, closed, or changing endpoints as they happen. This utility is invaluable for both system administrators and security-conscious users who need to identify unauthorized network traffic or troubleshoot connectivity issues. Beyond simple monitoring, TCPView allows users to right-click on any entry to terminate a process or close a specific connection instantly. By providing a clear and actionable view of how applications interact with the internet or local network, it serves as a critical asset for maintaining system security and optimizing network performance.