Unavailable Entity Card: Lovelace card for finding unavailable/offline/unknown entities

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Hi everyone,

I built a small lovelace custom Unavailable Entity Card. It scans Home Assistant and shows only entities that are currently unavailable or unknown, using a native tile-style layout. The idea is to make “quietly broken” entities easier to spot without digging through Developer Tools.

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Feature list:

  • Scan all entities with all_entities: true or monitor a hand-picked entities: list
  • include / exclude filters for exact entities, domains, entity_globs / wildcards, labels, areas and states
  • Optional include_hidden: true for hidden registry entities
  • Group rows by device, integration, area, or domain
  • Search box appears automatically for longer lists
  • Supports custom unavailable states like offline, error, idle, or disconnected
  • Optional custom badge colors per state
  • Can be used with auto-entities
  • Works with light/dark themes

Example:

type: custom:unavailable-entity-card
title: Unavailable entities
all_entities: true
expanded: false

More configuration examples are available in the repo README.

GitHub: https://github.com/vineetchoudhary/lovelace-unavailable-entity-card

Install via HACS:

Open HACS repository on My Home Assistant

Feedback, feature requests, and contributions are always welcome!

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