Advanced Port Scanner - Advanced Port Scanner is a fast and free software for port scanning.
Advanced IP Scanner - Advanced IP Scanner shows all network devices, gives you access to shared folders, and can even remotely switch computers off. Download it Free.
WakeMeOnLan - Turn on computers on your local area network by sending Wake-on-LAN packets.
SoftPerfect Network Scanner - Powerful multipurpose network administration tool for Windows and macOS
Wake On LAN Ex 2 - Free software from Joseph (AKA BootBlock) of http://www.bootblock.co.uk
MiniWOL - miniWOL, a free and easy application (Windows, Linux and MacOS) to send a Wake On LAN to your network device(s), so you can wake them up from your computer.