The best alternative to Home Assistant is openHAB, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Home Assistant and 17 are so hopefully you can find a suitable replacement. Other interesting alternatives to Home Assistant are ioBroker, Domoticz, Jeedom and Homey – A better smart home.
openHAB is a Java-based open-source home automation platform that integrates and combines a vast range of different smart home systems and technologies into one single solution.
ioBroker is an integration platform for the Internet of Things, focused on Smart home, Building Automation, Smart Metering, Ambient Assisted Living, Process Automation, Visualization and Data Logging. It aims to be a possible replacement or extension for software like f.e.
Domoticz is a home automation system that lets you monitor and configure various devices like lights, switches, various sensors/meters like temperature, rain, wind, UV, electricity, gas, water and much more. Notifications/alerts can be sent to any mobile device.
Control, automate and monitor your entire smart home with Homey. Access Homey from anywhere in the world and manage all your devices from one central place.
Freedomotic is an open source, flexible, secure Internet of Things (IoT) development framework, useful to build and manage modern smart spaces.
FHEM (TM) is a GPL'd perl server for house automation. It is used to automate some common tasks in the household like switching lamps / shutters / heating / etc. and to log events like temperature / humidity / power consumption.
EVA ICS is a platform for automated control and monitoring systems development, for any needs, from home/office to industrial setups. It is completely free for non-commercial use as well as for commercial, on condition that enterprise integrates it on its own.
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Years of experience and dozens of active developers and a huge community made openHAB what it is today - an amazingly flexible center for your smart home. A broad technology support is crucial for a successful smart home setup. With almost 200 add-ons openHAB can talk to nearly everything out there! With it's easy setup and the diverse user interfaces it offers everything needed for small homes up to big office buildings.