iot-dashboard - A generic dashboard application based on JavaScript, HTML and CSS that runs in modern browsers.
FHEM - FHEM (TM) is a GPL'd perl server for house automation.
Thingsboard - Thingsboard is an open-source IoT platform for data collection, processing, visualization, and device management.
Conrad Connect - Service for managing smart home devices
Node-RED - Node-RED is a programming tool for wiring together hardware devices, APIs and online services in new and interesting ways.
pimatic - Home automation framework that runs on node.js.