PortKiller is a versatile cross-platform tool designed for port monitoring and management. It goes beyond the basic function of simply closing a port; it also allows listening on all TCP ports, checking running processes, and presenting detailed information about each connection. This makes it particularly valuable for software developers and network administrators. Key features include monitoring ports, managing Kubernetes port forwards, integrating with Cloudflare Tunnels, and terminating processes quickly and efficiently.

Straightforward Portable Usage

PortKiller facilitates comprehensive monitoring of port connections and provides intuitive management options. Notably, no installation is required; you can launch PortKiller by double-clicking its main executable to begin monitoring running TCP processes and port connections instantly. The main interface consolidates this information, creating an extensive list of ports active on the host system.

PortKiller Features:

Port Management
    ● Auto-discovers all listening TCP ports
    ● One-click process termination (graceful + force kill)
    ● Auto-refresh with configurable interval
    ● Search and filter by port number or process name
    ● Favorites for quick access to important ports
    ● Watched ports with notifications
    ● Smart categorization (Web Server, Database, Development, System)

Kubernetes Port Forwarding
    ● Create and manage kubectl port-forward sessions
    ● Auto-reconnect on connection loss
    ● Connection logs and status monitoring
    ● Notifications on connect/disconnect

Cloudflare Tunnels
(requires Cloudflared to be installed)
    ● View and manage active Cloudflare Tunnel connections
    ● Quick access to tunnel status

Compile a Favorites List for Quick Monitoring

To enhance usability, PortKiller includes a Favorites list and a Watched section. These features allow you to keep track of particularly important ports and connections. Processes can be easily sorted by category and filtered to provide a clearer overview of open connections. It also includes predefined categories that cover various types of processes, including web servers, database connections, development, and system processes.

Cloudflare Tunnel Management

Another standout capability of PortKiller is its management of Cloudflare Tunnel connections. It includes a dedicated section for viewing and controlling active tunnels, allowing users to monitor tunnel uptime and conveniently access connections via a web browser. To utilize this feature, the Cloudflared tool must be installed on the user’s computer.

Geek Verdict

PortKiller is a powerful port management and monitoring application that supports features such as Cloudflare Tunnel sharing and kubectl port-forward sessions, enabling connections between local workstations and resources running on Kubernetes clusters. As an open-source tool, PortKiller can be a significant asset for developers possessing advanced networking expertise.

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