Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
NetBox - NetBox is an open source web application designed to help manage and document computer networks. NetBox was developed specifically to address the needs of network and infrastructure engineers.
Angry IP Scanner - Open-source and cross-platform network scanner designed to be fast and simple to use
phpIPAM - phpipam is an open-source web IP address management application (IPAM).
Fing - Discover which devices are connected to any Wi-Fi network, map devices, detect intruders, assess...
Microsoft IP Address Management Server - IP Address Management (IPAM) in Windows Server® 2012 is an integrated suite of tools to enable...