Localization - Cube — ContextQMD

Embedded Cube surfaces — dashboards, Analytics Chat, and the full app in 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:

Runtime override — a cube:action:set-locale message sent from the host page (see At runtime).
URL parameter — the ?locale= query parameter on the embed URL (see Per embed via URL).
Account default — the language configured in Embed → Settings (see Account-wide default).
Fallback — en-US.

Account-wide default

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

Go to Embed → Settings.
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

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 message from the host page. This takes precedence over both the URL parameter and the account default:

sendAction("cube:action:set-locale", { locale: "es" });

See Events and actions for the full host ↔ embed messaging contract.