Customizing entities

Changing the entity_id

You can use the UI to change the entity_id and friendly name of supported entities. To do this:

  1. Select the entity, either from or from the frontend, or by clicking next to the entity in the dev-states menu
  2. Click on the cog in the right corner of the entity’s dialog
  3. Enter the new name or the new entity ID (remember not to change the domain of the entity - the part before the .)
  4. Select Save

Customizing entities

By default, all of your devices will be visible and have a default icon determined by their domain. You can customize the look and feel of your front page by altering some of these parameters. This can be done by overriding attributes of specific entities.

Customization using the UI

Under the Configuration menu you’ll find the Customization menu. When you select an entity to customize, you’ll see all the existing attributes listed and you can customize those, or select an additional supported attribute (see below).

Possible values

Configuration Variables


(string)(Optional)Name of the entity as displayed in the UI.


(string)(Optional)Name of the entity in `HomeBridge`.


(boolean)(Optional)Set to `true` to hide the entity.

Default value: false


(boolean)(Optional)Set to `true` to hide the entity from `HomeBridge`.

Default value: false


(boolean)(Optional)Set to `true` to hide the entity from `emulated_hue` (this will be deprecated in the near future and should be configured in [`emulated_hue`](/components/emulated_hue)).

Default value: false


(string)(Optional)URL to use as picture for entity.


(string)(Optional)Any icon from []( ([Cheatsheet]( Prefix name with `mdi:`, ie `mdi:home`. Note: Newer icons may not yet be available in the current Home Assistant release. You can check when an icon was added to at [MDI History](


(boolean)(Optional)For switches with an assumed state two buttons are shown (turn off, turn on) instead of a switch. By setting `assumed_state` to `false` you will get the default switch icon.

Default value: true


([device_class](/docs/configuration/customizing-devices/#device-class))(Optional)Sets the class of the device, changing the device state and icon that is displayed on the UI (see below). It does not set the `unit_of_measurement`.

Default value: None


(string)(Optional)Defines the units of measurement, if any. This will also influence the graphical presentation in the history visualisation as continuous value. Sensors with missing `unit_of_measurement` are showing as discrete values.

Default value: None


(string)(Optional)Sets the initial state for automations, `on` or `off`.

Device Class

Device class is currently supported by the following components:

Manual customization

If you implement customize, customize_domain, or customize_glob you must make sure it is done inside of homeassistant: or it will fail.

  name: Home
  unit_system: metric
  # etc

    # Add an entry for each entity that you want to overwrite.
      hidden: true
      friendly_name: Nest
      friendly_name: Toaster
      entity_picture: /local/toaster.jpg
      friendly_name: Kitchen kettle
      icon: mdi:kettle
      assumed_state: false
  # Customize all entities in a domain
      icon: mdi:home
      initial_state: 'on'
  # Customize entities matching a pattern
      icon: mdi:description
      hidden: true
      emulated_hue_hidden: false
      homebridge_hidden: true

Reloading customize

Home Assistant offers a service to reload the core configuration while Home Assistant is running called homeassistant.reload_core_config. This allows you to change your customize section and see it being applied without having to restart Home Assistant. To call this service, go to the service developer tool icon service developer tools, select the service homeassistant.reload_core_config and click “CALL SERVICE”.

New customize information will be applied the next time the state of the entity gets updated.