ZeroPort

How it works

• Replaces the netstat → tasklist → guesswork loop with one window: every listening TCP port, the process that owns it, and a single action to release it.
• Names the real service from the process command line rather than the port number, so "python -m uvicorn main:app" reads as FastAPI / Uvicorn instead of python.exe. The port is consulted last, so a bare python.exe on 5432 never becomes PostgreSQL.
• Termination revalidates PID, start time and executable name immediately before acting, so a recycled PID can never be killed by mistake — and a process it cannot verify is marked un-stoppable rather than offered a stop button.
• Sockets bound to both IPv4 and IPv6 collapse into one row per port and process: a real scan drops from 28 near-identical rows to 18, with the individual endpoints kept in the details view.
• 135 tests run against the real operating system instead of mocks — binding live sockets, spawning and terminating real child processes, and driving the whole GUI end to end headlessly in CI.
• Two runtime dependencies and zero network calls: no telemetry, no update check, no account. Shipping PySide6-Essentials instead of the full Qt meta-package kept ~140 MB of unused QML, WebEngine and 3D modules out of the binary.
• Tagging a commit ships it — GitHub Actions runs the suite on a Windows runner, then publishes a single 34.6 MB executable with its SHA-256 only if every test passes.

Stack

Role — Creator