Implementation:Langgenius Dify Languages Catalog

Knowledge Sources	Langgenius_Dify
Domains	Frontend, Internationalization, Locale Data
Last Updated	2026-02-08 00:00 GMT

Overview

Static, immutable catalog of all languages supported by the Dify platform, providing locale codes, display names, prompt names, example greetings, and support flags.

Description

The Languages Catalog is a const-asserted data module that defines the complete list of languages available in the Dify platform. Each language entry contains:

• value -- The BCP 47 locale code (e.g., en-US, zh-Hans, ja-JP).
• name -- The human-readable display name in the language's native script.
• prompt_name -- The English name used when constructing prompts for LLMs.
• example -- A greeting example in the language (e.g., "Hello, Dify!").
• supported -- A boolean flag indicating whether the language is currently enabled.

The catalog currently includes 22 languages: English, Simplified Chinese, Traditional Chinese, Portuguese (Brazil), Spanish, French, German, Japanese, Korean, Russian, Italian, Thai, Ukrainian, Vietnamese, Romanian, Polish, Hindi, Turkish, Farsi, Slovenian, Indonesian, and Tunisian Arabic. All languages are currently marked as supported: true.

The data is exported as a const assertion, providing precise literal types for TypeScript consumers.

Usage

This module is imported by language.ts to derive the list of supported locales and by other i18n utilities that need access to language metadata such as display names and prompt names.

Code Reference

Source Location

• Repository: Langgenius_Dify
• File: web/i18n-config/languages.ts

Signature

declare const data: {
  readonly languages: readonly [
    { readonly value: 'en-US', readonly name: 'English (United States)', readonly prompt_name: 'English', readonly example: 'Hello, Dify!', readonly supported: true },
    { readonly value: 'zh-Hans', readonly name: '简体中文', readonly prompt_name: 'Chinese Simplified', ... },
    // ... 20 more language entries
  ]
}

export default data

Import

import data from '@/i18n-config/languages'

const languages = data.languages

I/O Contract

Inputs

Name	Type	Required	Description
(none)			This is a static data module with no runtime inputs

Outputs

Name	Type	Description
data.languages	readonly LanguageEntry[]	Immutable array of 22 language definition objects
value	string	BCP 47 locale code (e.g., "en-US")
name	string	Native-script display name
prompt_name	string	English name for LLM prompts
example	string	Greeting example in the language
supported	boolean	Whether the language is currently enabled

Usage Examples

import data from '@/i18n-config/languages'

// Access all languages
const allLanguages = data.languages
console.log(allLanguages.length) // 22

// Find a specific language
const japanese = allLanguages.find(lang => lang.value === 'ja-JP')
console.log(japanese?.name) // '日本語 (日本)'
console.log(japanese?.prompt_name) // 'Japanese'

// Get supported language codes
const supportedCodes = allLanguages
  .filter(lang => lang.supported)
  .map(lang => lang.value)

// Use prompt name for LLM context
const promptName = allLanguages.find(l => l.value === 'fr-FR')?.prompt_name // 'French'

Related Pages

• Langgenius_Dify_Language_Config - Configuration module that imports and processes this catalog
• Langgenius_Dify_I18n_Server - Server-side i18n that uses the derived locale list