PuTTY - Popular free terminal application. Mostly used as an SSH client.
Win10Pcap - Win10Pcap is a WinPcap-based Ethernet packet capture library.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Npcap - Npcap is the Nmap Project's packet sniffing library for Windows.
iTerm2 - A terminal emulator for macOS that does amazing things.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.