# Language Select

> A searchable language picker on Base UI's Combobox. Every row shows the language in its own script with the English name beneath, search matches either name or the code, a Suggested group sits on top, right-to-left languages are set right to left and rows can carry a Beta tag. Also exports LanguageSwitcher, a compact globe trigger for headers and footers.

- Slug: `language-select`
- Category: [Selects](https://www.assembli.design/category/selects.md)
- Type: component
- Tags: language, locale, i18n, select, combobox, switcher, translation
- npm dependencies: @base-ui/react, lucide-react
- shadcn/ui dependencies: none
- Live preview: https://www.assembli.design/preview/language-select
- Page: https://www.assembli.design/components/language-select

![Language Select preview](https://www.assembli.design/thumbnails/language-select-light.png)

## Props

Other props pass through to the root element.

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| `value` | `string \| null` |  | A BCP 47 tag from the list, such as `"de"`. |
| `defaultValue` | `string \| null` |  |  |
| `onValueChange` | `(code: string \| null, language: Language \| null) => void` |  |  |
| `suggested` | `string[]` |  | Codes listed under "Suggested" while the search is empty, e.g. the browser's own languages. |
| `languages` | `Language[]` |  | Replace the built-in list. |
| `disabled` | `boolean` |  |  |
| `name` | `string` |  |  |
| `open` | `boolean` |  |  |
| `defaultOpen` | `boolean` |  |  |
| `onOpenChange` | `(open: boolean) => void` |  |  |
| `label` | `React.ReactNode` |  |  |
| `hint` | `React.ReactNode` |  |  |
| `description` | `React.ReactNode` |  |  |
| `error` | `React.ReactNode` |  | Replaces the description and marks the trigger `aria-invalid`. |
| `placeholder` | `React.ReactNode` | `"Select a language"` |  |
| `triggerClassName` | `string` |  |  |

## Install

One-time setup (needs a subscription):

1. Add the registry to the project's `components.json`: `{"@assembli":{"url":"https://www.assembli.design/r/{name}.json","headers":{"Authorization":"Bearer ${ASSEMBLI_API_KEY}"}}}` (merge into `"registries"`).
2. Put an API key from https://www.assembli.design/account in `.env.local` as `ASSEMBLI_API_KEY=asm_…`.

Then install with the shadcn CLI (writes `components/language-select/language-select.tsx` and installs dependencies):

```bash
npx shadcn@latest add @assembli/language-select
```

Registry item JSON: https://www.assembli.design/r/language-select.json (send `Authorization: Bearer <api key>`)

## Code

> Component source needs an Assembli subscription ($12/month or $96/year) and an API key sent as `Authorization: Bearer <key>`. To get one without copying anything, POST https://www.assembli.design/api/agent/login (or call the MCP tool connect_account), show the user the link it returns, and poll https://www.assembli.design/api/agent/token for the key. Or subscribe at https://www.assembli.design/pricing and create a key at https://www.assembli.design/account.