Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
iCSee - iCSee is a robust and easy-to-use security software through which you can monitor your places such as homes, offices, shops, garages, workshops, and other physical networks.
ioBroker - flexible and modular application for the IoT and Smarthome
Kami Home - Kami Home makes it practical and effortless to guard and stay connected with the things, such as family, friends, pets, offices, accessories, and all the others that you love the most.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
LView - LView is a video monitoring software for DVR and IPC, developed in the market by Zhubo Inc.