FHEM vs ioBroker
A side-by-side comparison of two self-hosted home automation options — licensing, setup difficulty, resource needs, and what each one replaces.
FHEM
Perl-based server for home automation tasks
VS
ioBroker
Integration platform for the Internet of Things
| Feature | FHEM | ioBroker |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 62 · Good | 84 · Excellent |
| Category | Home Automation | Home Automation |
| License | GPL-2.0 | MIT |
| Language | Perl | Shell |
| Setup difficulty | Hard | Medium |
| Min. RAM | 256 MB | 1,024 MB |
| Deployment | docker, bare-metal | docker, bare-metal |
| GitHub stars | ★ 22 | ★ 1,377 |
| First released | 2005 | 2014 |
| Replaces | SmartThings | SmartThings, Hubitat |
What are FHEM and ioBroker?
FHEM
FHEM is a long-standing, GPL-licensed server for home automation used to control lights, heating, alarms, and many other devices. It supports a vast range of protocols through community modules.
- Vast protocol support
- Community module library
- Lightweight Perl server
- Long-term reliability
ioBroker
ioBroker is an open-source IoT integration platform that connects and automates devices across many protocols and vendors. It uses adapters to bring smart home systems together under one logic engine.
- Hundreds of adapters
- JavaScript automation engine
- Multi-protocol device support
- Flexible visualization
FHEM vs ioBroker: key differences
FHEM is written in Perl, while ioBroker is built with Shell. Licensing differs — GPL-2.0 for FHEM versus MIT for ioBroker. FHEM is the lighter option, starting around 256 MB of RAM against 1,024 MB for ioBroker. FHEM is the more established project (first released 2005), while ioBroker arrived in 2014. IoBroker has the considerably larger community, at 1,377 GitHub stars versus 22.
Why pick each one
Choose FHEM if…
- Extremely mature
- Runs on modest hardware
Watch out for
- Dated, technical interface
- Configuration is arcane
Choose ioBroker if…
- Extremely flexible
- Huge adapter ecosystem
Watch out for
- Steep learning curve
- Setup can be complex
Frequently asked questions
Is FHEM or ioBroker better?
ioBroker 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 FHEM and ioBroker free and open-source?
Yes. FHEM is licensed under GPL-2.0 and ioBroker under MIT. Both can be self-hosted at no software cost.
Can I run FHEM and ioBroker with Docker?
FHEM: yes. ioBroker: yes.
Which is lighter on resources, FHEM or ioBroker?
FHEM has the smaller minimum footprint at 256 MB of RAM, compared to about 1,024 MB for ioBroker. Real-world usage depends on library size, user count, and enabled features.