EMQX vs FHEM
A side-by-side comparison of two self-hosted home automation options
— licensing, setup difficulty, resource needs, and what each one
replaces.
Not the right match-up?
Compare EMQX with
choose an app… Home Assistant Frigate ntfy Homebridge Tasmota ThingsBoard WLED Frigate NVR Companion go2rtc Zigbee2MQTT ESPHome Mosquitto HACS Home Assistant Operating System evcc Scrypted Mushroom Piper Bubble Card OpenMQTTGateway Domoticz Companion DZVents Hyperion Domoticz Home Assistant Companion ESPEasy Sonoff DIY Tools Gladys Assistant Rhasspy Mozilla WebThings Gateway openWakeWord Button Card Awtrix Light OpenBeken Home Assistant Supervisor SmartApp Bridge deCONZ ApexCharts Card OpenRemote diyHue card-mod Mini Media Player TinyTuya Server Home Assistant Floorplan HA-Bridge ESPresense Govee2MQTT ioBroker OpenEnergyMonitor Emoncms HASS.Agent Wyoming Satellite Z-Wave JS UI OwnTracks Recorder LocalTuya openHAB Frigate Cards Python Matter Server OpenHASP Tasmoadmin AppDaemon Ring-MQTT EMHASS Domoticz Plugin Hub Zigbee2MQTT Frontend OpenSprinkler Grott Growatt Monitor Zigbee2MQTT Assistant SIP Irrigation Control Jeedom Node-RED Dashboard 2.0 OpenHAB Cloud OpenVoiceOS SmartIR Theengs Gateway Zwave-JS Server SOLECTRUS SmartHomeNG Victron Venus OS Bridge Dahua2MQTT Streamline Smart Home Dashboards Calaos ESPHome Web Tools Habapp LHA Onloc Find My Device
Compare FHEM with
choose an app… Home Assistant Frigate ntfy Homebridge Tasmota ThingsBoard WLED Frigate NVR Companion go2rtc Zigbee2MQTT ESPHome Mosquitto Home Assistant Operating System evcc Domoticz Gladys Assistant Mozilla WebThings Gateway Home Assistant Supervisor SmartApp Bridge ioBroker Z-Wave JS UI openHAB AppDaemon Domoticz Plugin Hub Jeedom OpenHAB Cloud Zwave-JS Server
Feature EMQX FHEM Category Home Automation Home Automation License Apache-2.0 GPL-2.0 Language Erlang Perl Setup difficulty Medium Hard Min. RAM 512 MB 256 MB Deployment docker docker, bare-metal GitHub stars ★ 16,599 ★ 22 First released 2026 2005 Replaces — SmartThings
Why pick each one
Choose EMQX if… Released under the Apache-2.0 license First-class Docker support for quick deployment Mature project with 16.6k GitHub stars Written in Erlang EMQX details Choose FHEM if… Extremely mature Runs on modest hardware FHEM details
Frequently asked questions Is EMQX or FHEM better? EMQX is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider FHEM if its specific feature set fits your needs better.
Are EMQX and FHEM free and open-source? Yes. EMQX is licensed under Apache-2.0 and FHEM under GPL-2.0. Both can be self-hosted at no software cost.
Can I run EMQX and FHEM with Docker? EMQX: yes. FHEM: yes.