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ESPHome vs Home Assistant

ESPHome logo

ESPHome

Software

Custom firmware for ESP8266/ESP32 smart home devices

From
Free
Rated
-
Full reviewWebsite
Home Assistant logo

Home Assistant

Software

Open source home automation that puts local control and privacy first

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ESPHome eSPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects; Home Assistant add-ons run only on Home Assistant Operating System installations, and Container installations have no access to them
  • They diverge on capability: ESPHome covers YAML Configuration, Home Assistant covers Local Control.

Where they differ

Only the attributes on which ESPHome and Home Assistant actually diverge.

Attributes where ESPHome and Home Assistant differ
AttributeESPHomeHome Assistant
PlatformsESP8266, ESP32, Docker, Raspberry PiLinux, Docker, Raspberry Pi, MacOS, Windows
Founded20182013

Identical on both: starting price (Free), pricing model (open-source), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ESPHome

  • YAML Configuration
  • OTA Updates
  • Home Assistant Native
  • Custom Components
  • Home Assistant
  • MQTT
  • API
  • Native integration

Only in Home Assistant

  • Local Control
  • Privacy First
  • Automation Engine
  • Custom Integrations
  • 150+ integrations
  • Voice Control
  • Mobile App
  • REST API

Both cover

  • Docker support
  • Raspberry Pi support

What people use each for

The jobs each tool is most often brought in to do.

ESPHome

  • Building custom smart home sensors and switches on ESP32 hardwarenot Home Assistant
  • Replacing vendor cloud firmware on ESP based devices with locally controlled firmwarenot Home Assistant
  • Integrating DIY devices into Home Assistant over a native API or MQTTnot Home Assistant

Home Assistant

  • Home automationnot ESPHome
  • Energy monitoringnot ESPHome
  • Security systemsnot ESPHome
  • Device integrationnot ESPHome

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ESPHome

  • ESPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects
  • Support for ESP32-H2, RP2040 and other newer chips is documented as less mature
  • Large displays and some sensors do not work well on ESP8266 because of its limited RAM, which is roughly a fifth of an ESP32

Home Assistant

  • Add-ons run only on Home Assistant Operating System installations, and Container installations have no access to them
  • Thread and Z-Wave are controlled by add-ons, so a Container install has no out-of-the-box support for either
  • A Container installation means bringing your own Linux host with Docker and handling updates by hand
  • The recommended install path expects dedicated hardware such as a Raspberry Pi 4 or 5 with at least 2 GB of RAM, an Odroid, or an x86-64 machine
  • Every documented hardware option requires a wired Ethernet connection

Pricing, plan by plan

ESPHome

Free
  • CommunityFree
    • Full firmware
    • Home Assistant integration
    • Custom sensors

Home Assistant

Free
  • Community EditionFree
    • Unlimited devices
    • Full automation
    • Local control

Which should you pick?

Choose ESPHome if

  • You need yaml configuration.
  • You want to start without paying.
  • You work on ESP8266, ESP32, Docker, Raspberry Pi.
  • You also want ota updates.
ESPHome review

Choose Home Assistant if

  • You need local control.
  • You want to start without paying.
  • You work on Linux, Docker, Raspberry Pi, MacOS, Windows.
  • You also want privacy first.
Home Assistant review

Questions people ask

Is ESPHome or Home Assistant better?
Neither clearly leads. ESPHome starts at Free and Home Assistant at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ESPHome or Home Assistant?
ESPHome starts at Free and Home Assistant at Free.
Does ESPHome or Home Assistant run on more platforms?
ESPHome runs on ESP8266, ESP32, Docker, Raspberry Pi. Home Assistant runs on Linux, Docker, Raspberry Pi, MacOS, Windows.
Can I use ESPHome for free?
Both have a free tier, so you can try either at no cost before committing.
What is ESPHome best used for?
ESPHome is most often used for building custom smart home sensors and switches on esp32 hardware, replacing vendor cloud firmware on esp based devices with locally controlled firmware, integrating diy devices into home assistant over a native api or mqtt. Of those, building custom smart home sensors and switches on esp32 hardware and replacing vendor cloud firmware on esp based devices with locally controlled firmware are not what Home Assistant is typically brought in for.
What can ESPHome do that Home Assistant cannot?
ESPHome covers YAML Configuration, OTA Updates, Home Assistant Native, Custom Components. Home Assistant covers Local Control, Privacy First, Automation Engine, Custom Integrations. Both handle Docker support, Raspberry Pi support.
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