port

Easy network switch port identification for Windows, macOS and Linux

Vovsoft Serial Port Monitor is an easy to use utility that allows monitoring your computer's COM port data traffic. You can read serial data from any COM port and send data to any COM port.

Lightweight utility to identify and terminate processes haunting your network ports.

A open port scanner.

Lightweight TCP port monitoring alert tool for Windows.

See every port in use, and take one back with a click.

Create pairs of virtual COM ports linked by virtual null-modem cable

A cross-platform terminal UI application for viewing and managing open ports - process on your system.

The Modern Port Scanner

A lightweight serial port monitor for Windows

It is a multi-threaded ICMP, Port, IP, NetBIOS/NetBT, ActiveDirectory and SNMP scanner with many advanced features.

See what's listening on your local ports, and free a busy one in a click.