Zigbee2MQTT

Zigbee is a popular wireless standard used by thousands of affordable smart devices, bulbs, motion sensors, door contacts, plugs, thermostats and more from brands like IKEA, Philips, Aqara, and Xiaomi. Normally each brand wants you to use their own dedicated hub and app, but Zigbee2MQTT replaces all of those with a single cheap USB stick plugged into your server, giving you control over everything from one place.

Once running, every device on your Zigbee network reports its status, motion detected, door opened, temperature reading directly to your home server. You keep full control: no data is sent to any manufacturer's cloud, devices still work if the internet goes down, and you're free to mix and match brands without worrying about compatibility.

It connects seamlessly with Home Assistant and Node-RED, so the data from all your devices can feed into automations and dashboards you build yourself. With support for over 3,000 devices and an active community, it's one of the most widely used tools in the self-hosting world.