Frontend


This offers the official frontend to control Home Assistant.

# Example configuration.yaml entry
frontend:

Configuration Variables

javascript_version

(string)(Optional)Version of the JavaScript to serve to clients. Options: es5 - transpiled so old browsers understand it. latest - not transpiled, so will work on recent browsers only. auto - select a version according to the browser user-agent. The value in the config can be overiden by putting es5 or latest in the URL. For example http://localhost:8123/states?es5

Default value: auto

themes

(map)(Optional)Allow to define different themes. See below for further details.

[identifier]

(list | map)(Required)Name to use in the frontend.

[css-identifier]

(list | string)(Required)The CSS identifier.

extra_html_url

(list)(Optional)List of additional resources to load in latest javascript mode.

extra_html_url_es5

(list)(Optional)List of additional resources to load in es5 javascript mode.

development_repo

(string)(Optional)Allow to point to a directory containing frontend files instead of taking them from a pre-built PyPI package. Useful for Frontend development.

Defining Themes

Starting with version 0.49 you can define themes:

# Example configuration.yaml entry
frontend:
  themes:
    happy:
      primary-color: pink
    sad:
      primary-color: blue

The example above defined two themes named happy and sad. For each theme you can set values for CSS variables. For a partial list of variables used by the main frontend see ha-style.ts.

Check our community forums to find themes to use.

Theme automation

There are 2 themes-related services:

  • frontend.reload_themes: reloads theme configuration from your configuration.yaml file.
  • frontend.set_theme(name): sets backend-preferred theme name.

Example in automation:

Set a theme at the startup of Home Assistant:

automation:
  - alias: 'Set theme at startup'
    initial_state: 'on'
    trigger:
     - platform: homeassistant
       event: start
    action:
      service: frontend.set_theme
      data:
        name: happy

To enable “night mode”:

automation:
  - alias: 'Set dark theme for the night'
    initial_state: true
    trigger:
      - platform: time
        at: '21:00:00'
    action:
      - service: frontend.set_theme
        data:
          name: darkred

Manual Theme Selection

When themes are enabled in the configuration.yaml file, a new option will show up in the user profile menu (accessed by clicking your user account initials at the top of the sidebar). You can then choose any installed theme from the dropdown list and it will be applied immediately.

Set a theme

Loading extra HTML

Starting with version 0.53 you can specify extra HTML files to load.

Example:

# Example configuration.yaml entry
frontend:
  extra_html_url:
    - https://example.com/file1.html
    - /file2.html

Those will be loaded via <link rel='import' href='' async> on any page (states and panels).

Manual Language Selection

The browser language is automatically detected. To use a different language, go to the user profile menu (accessed by clicking your user account initials at the top of the sidebar) and select one. It will be applied immediately.

Choose a Language