openHAB is described as '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' and is a very popular Home Automation tool in the bitcoin & cryptocurrency category. There are more than 50 alternatives to openHAB for a variety of platforms, including Linux, Android, Mac, Windows and iPhone apps. The best openHAB alternative is Home Assistant, which is both free and Open Source. Other great apps like openHAB are ioBroker, Homebridge, Domoticz and SmartThings.
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.
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.
Almost everyone thinks FHEM is a great openHAB alternative.
Connect Homematic and other smart home devices to your smarthome system (openHAB, NodeRED, etc.).
Gladys is an open-source program which runs on your Raspberry Pi or Docker. She integrates into your life, seamlessly communicating across your entire home network and your devices while checking your calendar. Based on NodeJS.
HomeApp is a small and easy to use smart home app with a simple framework. The goal of this application is to make remote execution of predefined features as easy and user-friendly as possible to help you get started with smart home technology.
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.
Control everything in your home with the Loxone Smart Home App. Whether you want to switch off the lights from the comfort of your bed, or check on your home while you’re away on vacation, the App offers convenient, reliable home control that’s simple to use.
WebThings Gateway is a software distribution for smart home gateways which allows users to directly monitor and control their smart home over the web, without a middleman.
mediola® IQONTROL is the ultimate and easy to use Smart Home App for consumers to control & automate their homes using our powerfull mediola® a.i.o. gateway which supports and unifies many brands and devices.
Control4 manufactures a complete line of affordable wired and wireless smart home systems and home automation software products to enable lighting control, temperature control, whole home audio distribution, security and energy management for homes.
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Very stable, supported by a great community, very modest resource requirements, well documented.