--- title: "Custom Component Localization" --- ## Translation Strings Unlike localized strings merged in the `home-assistant` repository, custom components cannot take advantage of Lokalise for user submitted translations. However, custom component authors can still include translations with their components. These will be read from the `.translations` directory, adjacent to the component source. They are named `..json`, e.g., for the German translation of a sensor `sensor.de.json`, unless the translation is for the custom component only, in which case the file is simply named `.json` in the `.translations` directory. These files follow the same formatting as [backend translation string files](internationalization_backend_localization.md), but a copy will exist for each translated language. The language codes follow the [BCP47](https://tools.ietf.org/html/bcp47) format. The [frontend translation files](https://github.com/home-assistant/home-assistant-polymer/tree/master/translations) can also be referred to if you are unsure of the correct language code to use. The frontend will serve these files after Home Assistant is restarted.