• views: 59
• date: 23 June 2026
• posted by: oaxino

PortKiller 3.3.3 (x64) | Size: 553.14 KB
Language: English


PortKiller is not created solely for closing a port, but it provides a cross-platform port monitoring and management tool that can listen to all TCP ports, check running processes and display information about each.

Particularly useful to software developers and network administrators, this application can do more than monitor opened ports and kill running processes: it can filter process types and help with process management, handle Kubernetes port forwarding, manage Cloudflare Tunnel and share connections.
Monitor port connections and filter them out
No installation is required, as PortKiller is immediately available to you when you double click on its main executable. The application starts monitoring running TCP processes and port connections, displaying them all in one place and building a comprehensive list of ports for the entire host system.

To help with port and process management, PortKiller features a 'Favorites' list and a 'Watched' section, which allows you to keep a close eye on ports and connections you are most interested in.
Processes can be easily sorted by category and filtered to get a simpler overview of the opened ports. PortKiller features a few predefined categories, and, sincerely, I think these are enough to sort the types of connections. To be more specific, it allows monitoring processes related to web servers, database connections, development, system processes, and others.
Manage and monitor Cloudflare Tunnel connections
It is also worth mentioning that PortKiller can share a port connection, providing a dedicated section for viewing and managing active Cloudflare Tunnels. You get quick access to the status of a tunnel connection, with options to monitor its uptime and open the connection in a web browser. To be able to use this feature, Cloudflared needs to be installed on your computer.
A port management and monitoring tool with support for Cloudflared
PortKiller provides a simple means of monitoring port connections on your computer and sharing them via a Cloudflare Tunnel. Moreover, it can help create kubectl port-forward sessions, connecting the local workstation to a resource running on a Kubernetes cluster. Released under an open-source license, the application can be an asset in the right hands of developers with advanced networking knowledge.

System Requirements: Windows 11, Windows 10


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