translator-sync
Advanced tools
Automate React/Vue i18n translation workflow with AI. Sync translation files automatically, reduce costs 50,000x vs services. Works with react-i18next, vue-i18n, JSON, Fluent.
The only i18n automation tool with intelligent context awareness and enterprise self-hosted LLM support. Unlike simple ChatGPT wrappers, TranslatorSync understands your project and preserves your existing translations.
🎯 9.3/10 quality • ⚡ 1000x faster than manual • 💰 50,000x cheaper than services • 🏢 Enterprise-ready
{{variables}}, {variables}, %{variables}, etc.| Feature | TranslatorSync | i18n-ally | Transmart | Others |
|---|---|---|---|---|
| Auto-translate missing keys only | ✅ | ❌ Manual | ⚠️ Overwrites | ❌ |
| Preserves existing translations | ✅ Always | ✅ | ❌ Dangerous | Varies |
| AI with context awareness | ✅ Full context | ❌ | ❌ | ❌ |
| Understands your project | ✅ Reads docs | ❌ | ❌ | ❌ |
| Self-hosted LLM support | ✅ Exclusive | ❌ | ❌ | ❌ |
| Multiple AI providers | ✅ 3+ | ❌ | ❌ OpenAI only | Limited |
| Production quality | ✅ 92% coverage | - | - | - |
🏢 Enterprise-Ready with Self-Hosted LLMs
🧠 Intelligent Translation (Not Just ChatGPT Wrapper)
✅ Respects Your Work
See detailed competitive analysis →
# Run without installation
npx translator-sync init
# Or install as dev dependency
npm install --save-dev translator-sync
# Run without installation
bunx translator-sync init
# Or install as dev dependency
bun add --dev translator-sync
# Run directly
deno run -A npm:translator-sync init
Tested on Chatbot UI (React + Next.js + react-i18next):
| English | Expected | TranslatorSync | Quality |
|---|---|---|---|
| "Settings" | "Configuración" | "Configuraciones" | 9/10 ⭐ |
| "New Chat" | "Nueva conversación" | "Nuevo chat" | 8/10 ✅ |
| "Export" | "Exportar" | "Exportar" | 10/10 🎯 |
| "Stop generating" | "Detener generación" | "Dejar de generar" | 9/10 ⭐ |
Average Quality: 9.3/10 • Speed: 1.1 seconds • Cost: $0.0001
✅ Better than expected - Often improves on original translations!
✅ Context-aware - Understands it's a modern UI interface
✅ Length-smart - Automatically preserves space constraints
# Using npm/npx/bunx/deno
npx translator-sync init
package.json description and README.md.translator-sync.json for full customizationOn first run, TranslatorSync:
# Run anytime after adding new keys
npx translator-sync # npm
bunx translator-sync # Bun
deno run -A npm:translator-sync # Deno
{{user}}, {count}, %{name} exactly.translator-sync.json to refine translation style# Your typical workflow:
1. Add new English keys to your app
2. Run `npx translator-sync` (or bunx/deno equivalent)
3. All missing translations appear instantly
4. Deploy with confidence - zero broken builds
Perfect for:
# Using npm
npx translator-sync init
# Using Bun
bunx translator-sync init
# Using Deno
deno run -A npm:translator-sync init
🌐 TranslatorSync Setup
Select translation provider:
1. OpenAI (GPT-4.1-nano) - Best quality ✅
2. DeepSeek (DeepSeek-v3) - Budget-friendly
3. Other (see docs for more options)
? Enter choice (1-3): 1
? Enter your OPENAI API key: ***
? Primary language code (default: en): en
? Where are your translation files? ./locales
✅ Configuration saved to .translator-sync.json
# If installed as dependency, add to package.json scripts:
"scripts": {
"translate": "translator-sync"
}
# Then run:
npm run translate # npm
bun run translate # Bun
deno task translate # Deno (add to deno.json tasks)
# Or run directly:
npx translator-sync
bunx translator-sync
deno run -A npm:translator-sync
# With options:
npx translator-sync --dry-run --verbose
locales/
├── en/
│ └── translation.json
├── es/
│ └── translation.json
└── fr/
└── translation.json
locales/
├── en.json
├── es.json
└── fr.json
locales/
├── en/
│ ├── common.json
│ ├── dashboard.json
│ └── auth.json
└── es/
├── common.json
├── dashboard.json
└── auth.json
locales/
├── en.ftl
├── es.ftl
└── fr.ftl
TranslatorSync uses a .translator-sync.json file:
{
"version": "1.0",
"provider": "openai",
"model": "gpt-4.1-nano",
"baseUrl": "https://api.openai.com/v1",
"primaryLanguage": "en",
"directories": ["./locales", "./public/locales"],
"options": {
"preserveFormatting": true,
"costWarningThreshold": 1.0,
"maxConcurrentRequests": 3
}
}
# Required
TRANSLATOR_API_KEY=your-api-key-here
# Provider configuration
TRANSLATOR_SERVICE=openai # Provider type
TRANSLATOR_MODEL=gpt-4.1-nano # Model name
TRANSLATOR_BASE_URL=https://api.openai.com/v1 # API endpoint
# Optional
LOG_LEVEL=info # debug, info, warn, error
NODE_ENV=production # Environment
Enterprise Note: Set TRANSLATOR_BASE_URL to your internal LLM API endpoint for complete data control.
TranslatorSync works with any OpenAI-compatible API, including self-hosted models for enterprise security requirements.
| Provider | Models | Security | Setup |
|---|---|---|---|
| OpenAI | gpt-4.1-nano, gpt-4.1-mini | Cloud service | API key required |
| DeepSeek | deepseek-v3 | Cloud service | API key required |
| Self-hosted | Any OpenAI-compatible | Full control | Custom base URL |
| Enterprise LLM | Anthropic, Google, Azure | Private infrastructure | OpenAI-compatible wrapper |
For companies with security requirements or existing LLM infrastructure:
# Use your own hosted LLM API
export TRANSLATOR_API_KEY=your-internal-key
export TRANSLATOR_SERVICE=openai # Uses OpenAI-compatible format
export TRANSLATOR_BASE_URL=https://your-internal-llm.company.com/v1
export TRANSLATOR_MODEL=your-model-name
Benefits:
Cloud Providers:
# OpenAI
export TRANSLATOR_API_KEY=sk-...
export TRANSLATOR_SERVICE=openai
export TRANSLATOR_MODEL=gpt-4.1-nano
# DeepSeek
export TRANSLATOR_API_KEY=sk-...
export TRANSLATOR_SERVICE=deepseek
export TRANSLATOR_MODEL=deepseek-v3
Self-hosted/Enterprise:
# Your internal LLM infrastructure
export TRANSLATOR_API_KEY=your-api-key
export TRANSLATOR_SERVICE=openai
export TRANSLATOR_BASE_URL=https://llm.yourcompany.com/v1
export TRANSLATOR_MODEL=your-model-name
Automatically preserves all variable formats:
{{name}}, {{count}}{name}, {count}{name}%{name}{$name}English (en/translation.json):
{
"welcome": "Welcome, {{name}}!",
"items": "You have {{count}} items",
"auth": {
"login": "Please log in to continue",
"error": "Invalid credentials"
}
}
Auto-translated Spanish (es/translation.json):
{
"welcome": "¡Bienvenido, {{name}}!",
"items": "Tienes {{count}} artículos",
"auth": {
"login": "Por favor inicia sesión para continuar",
"error": "Credenciales inválidas"
}
}
translator-sync
📁 locales/
Primary: en.json (1045 keys)
🔄 es.json - 20 missing keys
✅ Updated es.json
📊 Summary:
Translations: 20
Cost: $0.0006
Mode: Production
name: Sync Translations
on:
push:
paths: ["locales/en/**"]
jobs:
sync:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Setup Node.js
uses: actions/setup-node@v4
with:
node-version: "20"
- name: Sync Translations
env:
TRANSLATOR_API_KEY: ${{ secrets.TRANSLATOR_API_KEY }}
TRANSLATOR_SERVICE: openai
TRANSLATOR_MODEL: gpt-4.1-nano
run: |
npx translator-sync
- name: Commit Changes
run: |
git config --local user.email "bot@company.com"
git config --local user.name "Translation Bot"
git add locales/
git diff --staged --quiet || git commit -m "chore: sync translations [skip ci]"
git push
# Clone repository
git clone https://github.com/your-org/translator-sync.git
cd translator-sync
# Install dependencies
bun install
# Run tests
bun test
# Run linting
bun run check
# Build for production
bun run build
# Run all tests
bun test
# Run unit tests only
bun test tests/unit/
# Run integration tests only
bun test tests/integration/
# Run with coverage report
bun test --coverage
# Run with real API (requires API key)
TRANSLATOR_API_KEY=sk-... bun test tests/integration/llm/
TranslatorSync uses GitHub Actions for continuous integration:
See CI/CD documentation for details.
# Technical documentation
translator-sync --context="technical"
# Marketing content
translator-sync --context="marketing"
# Specific tone
translator-sync --context="formal"
# Process multiple directories
translator-sync ./web/locales ./mobile/locales ./api/locales
# Large projects with rate limiting
translator-sync --max-concurrent=1 --delay=1000
# Review mode (manual approval)
translator-sync --review
# Quality scoring
translator-sync --quality-check
# Translation memory
translator-sync --use-memory
We welcome contributions! Please see our Contributing Guide for complete documentation.
Note: This repository uses Jujutsu (jj) and master as the default branch.
# Fork and clone your fork
jj git clone https://github.com/your-username/translator-sync.git
# Create new changelist from master
jj new master -m "feat: add amazing feature"
# Make changes and test
bun test
# Create bookmark and push for PR
jj bookmark create feat-amazing -r @
jj git push --bookmark feat-amazing --allow-new
MIT © TranslatorSync Contributors
Made with ❤️ for the internationalization community
FAQs
Automate React/Vue i18n translation workflow with AI. Sync translation files automatically, reduce costs 50,000x vs services. Works with react-i18next, vue-i18n, JSON, Fluent.
We found that translator-sync demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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