FHEM
FHEM (TM) is a GPL’d perl server for house automation.
14 Alternatives To FHEM
Android Things
Build connected devices for a wide variety of consumer, retail, and industrial applications.
Conrad Connect
Service for managing smart home devices
EVA ICS
Open source platform for home and industrial IoT
Echo by Amazon
A hands-free speaker you control with your voice
Google Home
Set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices.
HUEston
A small GUI for accessing Philips HUE Lamps under any Windows environment.
Home
Securely control all your HomeKit accessories from your favorite iOS device.
IP-Symcon
IP-Symcon is the innovative centre of your entire building automation!
Kappelt gBridge
gBridge.io: Control anything with Google Assistantâ„¢ by sending MQTT messages on voice requests
SmartThings
SmartThings makes it easy to turn your home into a smart home.
Stringify
Smart Automation Home, Work, Life, IoT
domogik
Domogik is a free (GPLv3) Home Automation solution.
ioBroker
flexible and modular application for the IoT and Smarthome
openHAB
“empowering the smart home” - vendor and technology agnostic open source home automation