ioBroker - flexible and modular application for the IoT and Smarthome
Domoticz - Domoticz is a lightweight Home Automation System
Home - Securely control all your HomeKit accessories from your favorite iOS device.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
MisterHouse - MisterHouse is an open source home automation program.
mediola IQONTROL - A Home Gadget, IoT Hub for multiple devices and vendors