Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
ioBroker - flexible and modular application for the IoT and Smarthome
SolarWinds Network Configuration Manager - SolarWinds is a leading provider of powerful and affordable IT infrastructure management software. Make IT look easy.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
Cisco Network Assistant - Cisco Network Assistant simplifies wired and wireless network management, and provides critical product information using Cisco Active Advisor.