Home Assistant is a Python-based home automation platform that runs on your own hardware (a Raspberry Pi, a NUC, or any Linux server) and communicates directly with devices over your local network. It supports thousands of integrations spanning Zigbee, Z-Wave, Matter, MQTT, and dozens of brand-specific protocols. An optional paid cloud subscription (Nabu Casa) adds remote access without opening ports, but the core runs entirely offline.
Reviewed by Marcus Holmberg
Home Assistant
home-assistant.io 5.0 (7)
Rate Home Assistant: No account needed
Threat level
Hardened
A hardened pick. Worth the effort once you have chosen to shrink your footprint on purpose. Enough for most people. Threat levels
Our take
Nothing else in this category matches Home Assistant’s breadth of integrations or the depth of its automation engine. Local processing means your lights keep working even when the vendor’s cloud goes down, and your usage data never leaves your home. The real cost is complexity: the initial setup, YAML-based configuration for advanced automations, and the need to manage your own updates put this firmly in enthusiast territory. Users coming from Google Home or Alexa should expect a steep learning curve. For anyone serious about privacy and device longevity, that investment pays off; for casual smart-home users, the out-of-box experience will feel rough compared to commercial alternatives.
GitHub at a glance
home-assistant/core
Stars
90,834
+430 this week
Last commit
today
healthy
License
Apache-2.0
Latest release
2026.9.3
1d ago
Stars, last 90d
Website at a glance
home-assistant.io
C score 50
Basic website security headers
Graded by Mozilla HTTP Observatory, tested 11d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
Home Assistant alternatives
HomeKit Apple's smart home framework. End-to-end encrypted home data, on-device camera processing.
openHAB Vendor-neutral, Java-based home automation platform with local control and a large binding ecosystem.
Domoticz Lightweight open-source home automation system that runs well on low-power hardware like a Raspberry Pi.
ioBroker Open-source IoT and home automation platform built on Node.js with a large adapter ecosystem.
Home Assistant license, in plain English
Apache-2.0 Permissive
Permissive like MIT, with an explicit patent grant and a requirement to flag any changes you make.
Permits
- Commercial use
- Modification
- Distribution
- Patent use
- Private use
Requires
- License and copyright notice
- State changes
Does not provide
- Trademark use
- Liability cover
- Warranty
Why it matters: Permissive licensing lets anyone reuse this, including inside closed products. That is freedom to build on, but no guarantee that downstream copies stay open.
Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.