> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cube.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Localization

> Set the language for embedded Cube surfaces — account-wide, per embed via URL, or at runtime.

Embedded Cube surfaces — dashboards, [Analytics Chat](/embedding/iframe/analytics-chat),
and the full app in [Creator Mode](/embedding/iframe/creator-mode) — can render their
UI in any of the supported languages. You can set a default language for the whole
account, override it per embed with a URL parameter, or switch it at runtime from the
host page.

<Note>
  Available on [Premium and Enterprise plans](https://cube.dev/pricing).
</Note>

## Supported languages

| Language                | Locale code |
| ----------------------- | ----------- |
| English (US)            | `en-US`     |
| Deutsch (Deutschland)   | `de-DE`     |
| Español (España)        | `es-ES`     |
| Español (Latinoamérica) | `es-MX`     |
| Français (France)       | `fr-FR`     |
| Italiano (Italia)       | `it-IT`     |
| 日本語 (日本)                | `ja-JP`     |
| Norsk bokmål (Norge)    | `nb-NO`     |
| Português (Brasil)      | `pt-BR`     |
| Português (Portugal)    | `pt-PT`     |
| Svenska (Sverige)       | `sv-SE`     |
| Tiếng Việt (Việt Nam)   | `vi-VN`     |

English (`en-US`) is the default and the fallback when no language is configured.

A locale value can be a full code (`es-ES`), a short language code (`es`), or a regional
variant that isn't shipped (`es-AR`). Short codes and unsupported regional variants
resolve to the first supported locale for that language — for example, both `es` and
`es-AR` resolve to `es-ES`. A value that doesn't match any supported language is ignored.

## How the language is resolved

The language of an embedded surface is resolved from the following sources, highest
priority first:

1. **Runtime override** — a [`cube:action:set-locale`](/embedding/iframe/events#cube-action-set-locale)
   message sent from the host page (see [At runtime](#at-runtime)).
2. **URL parameter** — the `?locale=` query parameter on the embed URL (see
   [Per embed via URL](#per-embed-via-url)).
3. **Account default** — the language configured in **Embed → Settings** (see
   [Account-wide default](#account-wide-default)).
4. **Fallback** — `en-US`.

## Account-wide default

Set a default language for all embedded surfaces from the Cube Cloud console:

1. Go to **Embed → Settings**.
2. In the **Language** card, pick a language from the dropdown.

The selected language applies to every embedded surface across the account, unless a
specific embed overrides it with a `?locale=` URL parameter or a runtime
`cube:action:set-locale` message.

Clearing the setting removes the stored default, and embeds fall back to `en-US` (or to
whatever a per-embed override specifies).

## Per embed via URL

Override the account default for an individual embed by adding the `?locale=` query
parameter to the embed URL:

```text theme={"dark"}
https://your-tenant.cubecloud.dev/embed/dashboard/YOUR_DASHBOARD_PUBLIC_ID?session=YOUR_SESSION_ID&locale=es-MX
```

The parameter is read once when the embed loads and pinned for the session, so in-app
navigation won't drop it.

## At runtime

Switch the language after the embed has loaded by sending a
[`cube:action:set-locale`](/embedding/iframe/events#cube-action-set-locale) message from
the host page. This takes precedence over both the URL parameter and the account default:

```js theme={"dark"}
sendAction("cube:action:set-locale", { locale: "es" });
```

See [Events and actions](/embedding/iframe/events) for the full host ↔ embed messaging
contract.