PortKiller
github.com/productdevbook/port-killer- Category
- Developer Tools
- Rank
- No. 915Tools index
- Pricing
- Open Source
- Platform
- desktop
- Type
- APP
- Builder
- @productdevbook
- GitHub
- 5.0k stars
- Latest release
- v3.3.3
- Added
- Mar 4, 2026
About
A cross-platform desktop application that helps developers monitor and manage network ports, terminate processes with one click, and handle Kubernetes port forwarding. It features smart categorization of ports, favorites management, and integration with Cloudflare Tunnels.
What it can do
Auto-discover active TCP ports
System network state → List of active TCP ports with details
Terminate processes using specific ports
Selected port/process → Killed process and freed port
Manage Kubernetes port forwards
Kubernetes cluster and port configuration → Active port forwarding connection
Categorize ports by service type
Discovered ports and process information → Organized port groups by category
Save frequently used ports as favorites
Selected ports → Favorites list for quick access
Integrate with Cloudflare Tunnels
Cloudflare Tunnel configuration → Managed tunnel connections
Why it made the leaderboard
Ends the lsof-and-kill ritual — auto-discovers which processes hold which TCP ports and terminates them in one click, with Kubernetes port-forward management and Cloudflare Tunnel integration, native on both macOS menu bar and Windows tray.
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Indexed by a proprietary survey. Corrections welcome.