LocalizeIt - XCStrings Catalog

LocalizeIt is a native macOS app that translates Xcode string catalogs (.xcstrings) using AI. Built for Apple developers who want fast, accurate localization without the hassle.

NO ADS. NO SUBSCRIPTIONS. ONE-TIME PURCHASE.

You control the AI. Use Apple's built-in on-device LLM (completely free and private), or bring your own OpenAI or Anthropic API key. We never store or access your keys beyond your local Keychain.

KEY FEATURES

- Translate hundreds of strings in minutes
- Three AI providers: Apple Intelligence (free, offline), OpenAI, or Claude
- Preserves format specifiers (%@, %d, %f) to prevent runtime crashes
- Context-aware translations using your developer comments
- Supports all plural forms across languages
- Xcode-style three-panel interface
- Search, filter, and manually edit any translation
- Automatic backups before every save
- Secure API key storage in macOS Keychain

HOW IT WORKS

1. Open your .xcstrings file
2. Select your AI provider in Settings
3. Choose which strings and languages to translate
4. Review and edit translations
5. Save and use in Xcode

LocalizeIt respects your privacy and your wallet. No tracking, no data collection, no recurring fees. Just a straightforward tool that does exactly what it promises.