An i18nLanguage resource identifies an application language that the YouTube website supports. The application language can also be referred to as a UI language. For the YouTube website, an application language could be automatically selected based on Google Account settings, browser language, or IP location. A user could also manually select the desired UI language from the YouTube site footer.

Each i18nLanguage resource identifies a language code and a name. The language code can be used as the value of the hl parameter when calling API methods like videoCategories.list and guideCategories.list.


The API supports the following methods for i18nLanguages resources:

Returns a list of application languages that the YouTube website supports. Try it now.

Resource representation

The following JSON structure shows the format of a i18nLanguages resource:

  "kind": "youtube#i18nLanguage",
  "etag": etag,
  "id": string,
  "snippet": {
    "hl": string,
    "name": string


The following table defines the properties that appear in this resource:

kind string
Identifies the API resource's type. The value will be youtube#i18nLanguage.
etag etag
The Etag of this resource.
id string
The ID that YouTube uses to uniquely identify the i18n language.
snippet object
The snippet object contains basic details about the i18n language, such as its language code and name.
snippet.hl string
A BCP-47 code that uniquely identifies a language.
snippet.name string
The name of the language as it is written in the language specified using the i18nLanguage.list method's hl parameter.