TCPView

TCPView

TCPView is a Windows utility that shows detailed listings of all TCP and UDP endpoints on your system. It provides information on the process associated with each connection and bandwidth usage.
TCPView image
tcp udp network connections endpoints bandwidth

TCPView: Detailed Network Traffic Viewer

A Windows utility showing TCP and UDP endpoints, process associations, and bandwidth usage, helping network administrators monitor system connections.

What is TCPView?

TCPView is a free utility from Microsoft Sysinternals that provides a detailed view of all TCP and UDP connections on a Windows machine. It allows you to see the local and remote address for each connection, as well as the state of the connection, bytes in/out, and the process associated with the connection.

Some key features of TCPView:

  • Provides a real-time view of connections and listener ports on your system
  • Displays process name, PID, batch file info, executable path and version info
  • Can be sorted and filtered to find specific processes or endpoints
  • Shows hostname and IP for remote connections
  • Shows data transfer bandwidth usage
  • Lightweight tool with very little overhead

TCPView provides network administrators and power users deep insight into what processes and applications on a system are accessing the network. It can help identify bandwidth hogs, suspicious connections, malware infections, and routing/firewall misconfigurations.

TCPView Features

Features

  1. Displays active TCP and UDP connections
  2. Shows connection remote address and port
  3. Shows process name/ID for each connection
  4. Real-time bandwidth usage monitoring
  5. Export data to text/csv/xml
  6. Highlight connections matching filter criteria

Pricing

  • Free
  • Open Source

Pros

Lightweight and fast

Simple interface

Helpful for diagnosing network issues

Free and open source

Cons

Windows only

Lacks some advanced features of paid alternatives

Can be difficult for novice users


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