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FHEM

Perl-based server for home automation tasks

Home Automation ★ 23 stars Hard setup GPL-2.0

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.

Official siteSource code

Key features

  • Vast protocol support
  • Community module library
  • Lightweight Perl server
  • Long-term reliability

Pros & cons

Strengths

  • Extremely mature
  • Runs on modest hardware

Trade-offs

  • Dated, technical interface
  • Configuration is arcane

Is FHEM secure?

OSV.dev has no published security advisories for FHEM's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

FHEM replaces

Self-hosted SmartThings alternatives

Health badge

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SelfHostIndex: 62 · good

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   :alt: SelfHostIndex health score for FHEM
   :target: https://selfhostindex.com/app/fhem/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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