TrafficMonitor - TrafficMonitor is a network monitoring suspension window software in Windows.
PuTTY - Popular free terminal application. Mostly used as an SSH client.
NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
NetTraffic - Essential network bandwidth monitor.
iTerm2 - A terminal emulator for macOS that does amazing things.