Windows 11 includes built-in tools to audit open ports. The most powerful is netstat (network statistics).
This gives you a concise list of every port your PC is currently listening on. How to Open a Port in Windows 11 Firewall windows 11 open ports
First published: April 2026 Target audience: Windows 11 users, system administrators, security enthusiasts Windows 11 includes built-in tools to audit open ports
Then match the PID with Task Manager to identify the responsible application. windows 11 open ports