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# Internationalization (i18n)

## Introduction

This directory contains the internationalization (i18n) files for this project.

## File Structure

```

├── [  24]  README.md

├── [   0]  README_CN.md

├── [ 704]  en-US

│   ├── [2.4K]  app-annotation.ts

│   ├── [5.2K]  app-api.ts

│   ├── [ 16K]  app-debug.ts

│   ├── [2.1K]  app-log.ts

│   ├── [5.3K]  app-overview.ts

│   ├── [1.9K]  app.ts

│   ├── [4.1K]  billing.ts

│   ├── [ 17K]  common.ts

│   ├── [ 859]  custom.ts

│   ├── [5.7K]  dataset-creation.ts

│   ├── [ 10K]  dataset-documents.ts

│   ├── [ 761]  dataset-hit-testing.ts

│   ├── [1.7K]  dataset-settings.ts

│   ├── [2.0K]  dataset.ts

│   ├── [ 941]  explore.ts

│   ├── [  52]  layout.ts

│   ├── [2.3K]  login.ts

│   ├── [  52]  register.ts

│   ├── [2.5K]  share-app.ts

│   └── [2.8K]  tools.ts

├── [1.6K]  i18next-config.ts

├── [ 634]  index.ts

├── [4.4K]  language.ts

```

We use English as the default language. The i18n files are organized by language and then by module. For example, the English translation for the `app` module is in `en-US/app.ts`.

If you want to add a new language or modify an existing translation, you can create a new file for the language or modify the existing file. The file name should be the language code (e.g., `zh-CN` for Chinese) and the file extension should be `.ts`.

For example, if you want to add french translation, you can create a new folder `fr-FR` and add the translation files in it.

By default we will use `LanguagesSupported` to determine which languages are supported. For example, in login page and settings page, we will use `LanguagesSupported` to determine which languages are supported and display them in the language selection dropdown.

## Example

1. Create a new folder for the new language.

```

cp -r en-US fr-FR

```

2. Modify the translation files in the new folder.

3. Add type to new language in the `language.ts` file.

```typescript

export type I18nText = {

  'en-US': string

  'zh-Hans': string

  'pt-BR': string

  'es-ES': string

  'fr-FR': string

  'de-DE': string

  'ja-JP': string

  'ko-KR': string

  'ru-RU': string

  'it-IT': string

  'uk-UA': string

  'YOUR_LANGUAGE_CODE': string

}

```

4. Add the new language to the `language.ts` file.

```typescript



export const languages = [

  {

    value: 'en-US',

    name: 'English(United States)',

    example: 'Hello, Dify!',

    supported: true,

  },

  {

    value: 'zh-Hans',

    name: '简体中文',

    example: '你好,Dify!',

    supported: true,

  },

  {

    value: 'pt-BR',

    name: 'Português(Brasil)',

    example: 'Olá, Dify!',

    supported: true,

  },

  {

    value: 'es-ES',

    name: 'Español(España)',

    example: 'Saluton, Dify!',

    supported: false,

  },

  {

    value: 'fr-FR',

    name: 'Français(France)',

    example: 'Bonjour, Dify!',

    supported: false,

  },

  {

    value: 'de-DE',

    name: 'Deutsch(Deutschland)',

    example: 'Hallo, Dify!',

    supported: false,

  },

  {

    value: 'ja-JP',

    name: '日本語(日本)',

    example: 'こんにちは、Dify!',

    supported: false,

  },

  {

    value: 'ko-KR',

    name: '한국어(대한민국)',

    example: '안녕, Dify!',

    supported: true,

  },

  {

    value: 'ru-RU',

    name: 'Русский(Россия)',

    example: ' Привет, Dify!',

    supported: false,

  },

  {

    value: 'it-IT',

    name: 'Italiano(Italia)',

    example: 'Ciao, Dify!',

    supported: false,

  },

  {

    value: 'th-TH',

    name: 'ไทย(ประเทศไทย)',

    example: 'สวัสดี Dify!',

    supported: false,

  },

  {

    value: 'id-ID',

    name: 'Bahasa Indonesia',

    example: 'Saluto, Dify!',

    supported: false,

  },

  {

    value: 'uk-UA',

    name: 'Українська(Україна)',

    example: 'Привет, Dify!',

    supported: true,

  },

  // Add your language here 👇

  ...

  // Add your language here 👆

]

```

5. Don't forget to mark the supported field as `true` if the language is supported.

6. Sometime you might need to do some changes in the server side. Please change this file as well. 👇
https://github.com/langgenius/dify/blob/61e4bbabaf2758354db4073cbea09fdd21a5bec1/api/constants/languages.py#L5



## Clean Up

That's it! You have successfully added a new language to the project. If you want to remove a language, you can simply delete the folder and remove the language from the `language.ts` file.

We have a list of languages that we support in the `language.ts` file. But some of them are not supported yet. So, they are marked as `false`. If you want to support a language, you can follow the steps above and mark the supported field as `true`.