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ui/docs/content/1.getting-started/7.i18n/1.nuxt.md
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Internationalization (i18n) Learn how to internationalize your Nuxt app with multi-directional support (LTR/RTL). nuxt

::callout{to="/getting-started/i18n/vue" icon="i-logos-vue" class="hidden"} Looking for the Vue version? ::

Usage

::note{to="/components/app"} Nuxt UI provides an App component that wraps your app to provide global configurations. ::

Locale

Use the locale prop with the locale you want to use from @nuxt/ui/locale:

<script setup lang="ts">
import { fr } from '@nuxt/ui/locale'
</script>

<template>
  <UApp :locale="fr">
    <NuxtPage />
  </UApp>
</template>

Custom locale

You also have the option to add your own locale using defineLocale:

<script setup lang="ts">
const locale = defineLocale({
  name: 'My custom locale',
  code: 'en',
  dir: 'ltr',
  messages: {
    // implement pairs
  }
})
</script>

<template>
  <UApp :locale="locale">
    <NuxtPage />
  </UApp>
</template>

::tip Look at the code parameter, there you need to pass the iso code of the language. Example:

  • hi Hindi (language)
  • de-AT: German (language) as used in Austria (region) ::

Dynamic locale

To dynamically switch between languages, you can use the Nuxt I18n module.

::steps{level="4"}

Install the Nuxt I18n package

::code-group{sync="pm"}

pnpm add @nuxtjs/i18n@next
yarn add @nuxtjs/i18n@next
npm install @nuxtjs/i18n@next
bun add @nuxtjs/i18n@next

::

Add the Nuxt I18n module in your nuxt.config.ts

export default defineNuxtConfig({
  modules: [
    '@nuxt/ui',
    '@nuxtjs/i18n'
  ],
  i18n: {
    locales: [{
      code: 'de',
      name: 'Deutsch'
    }, {
      code: 'en',
      name: 'English'
    }, {
      code: 'fr',
      name: 'Français'
    }]
  }
})

Set the locale prop using useI18n

<script setup lang="ts">
import * as locales from '@nuxt/ui/locale'

const { locale } = useI18n()
</script>

<template>
  <UApp :locale="locales[locale]">
    <NuxtPage />
  </UApp>
</template>

::

Dynamic direction

Each locale has a dir property which will be used by the App component to set the directionality of all components.

In a multilingual application, you might want to set the lang and dir attributes on the <html> element dynamically based on the user's locale, which you can do with the useHead composable:

<script setup lang="ts">
import * as locales from '@nuxt/ui/locale'

const { locale } = useI18n()

const lang = computed(() => locales[locale.value].code)
const dir = computed(() => locales[locale.value].dir)

useHead({
  htmlAttrs: {
    lang,
    dir
  }
})
</script>

<template>
  <UApp :locale="locales[locale]">
    <NuxtPage />
  </UApp>
</template>

Supported languages

:supported-languages