Myelin ·

Translation infrastructure that sparks joy ✨

Myelin seamlessly integrates localization into your development process, freeing you to prioritize building exceptional user experiences while minimizing time spent on translation tasks.

npx myelino --translate

Features

• 🔒 Local First & Private
  Translation calls happen on your machine. We never send your data to third-party APIs or external databases.

• 🌍 Open Source
  Every line of code is transparent and available on GitHub.

• 🆓 Free Forever
  No hidden costs. Now and always.

• 🤖 Multi-Model Support
  Choose from openai, deepseek, moonshot, qwen, or bring your own model.

• 📚 First-Class i18n Library Support
  Works seamlessly with next-intl, react-intl, react-i18next, and more.

• 🗂 Namespace Support
  Supports both namespaced and non-namespaced structures out of the box.

Quick Start

1. Install Myelin
   Ensure Node.js (v18+) is installed, then run:

   npx myelino --init

2. Configure
   Create myelin.config.json in your project root:

   {
     "aiProvider": "deepseek",
     "aiModel": "deepseek-chat",
     "locale": {
       "location": "locales",
       "sourceLanguage": "en",
       "targetLanguages": ["es", "fr", "zh", "zh-TW", "en-US"]
     }
   }

3. Add API Key
   Create a .env file with your AI provider key:

   AI_API_KEY=sk-proj-your-api-key

4. Translate!
   Run the translation command:

   npx myelino --translate

   Myelin scans your source locale file (e.g., locales/en.json), translates new/missing strings, and updates target files (e.g., locales/fr.json).

Configuration Guide

myelin.config.json

Key	Description	Example
aiProvider	AI service provider	"openai", "deepseek"
aiModel	Model ID for the provider	"deepseek-chat", "gpt-4"
locale.location	Path to locale directory	"src/locales"
locale.sourceLanguage	Base language (ISO 639-1)	"en"
locale.targetLanguages	Languages to translate into	["es", "zh-TW"]

Supported Providers

• OpenAI
• DeepSeek
• Moonshot
• Qwen

Bring Your Own Model: Custom providers can be integrated via the open-source codebase.

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