Xlocalize: Localize xcstrings
AI String Catalog Translator
Only for Mac
Free · In-App Purchases
Mac
Translate Xcode String Catalogs into 40+ languages with OpenAI, Claude or Gemini — right on your Mac. Batch-translate, review and ship localized apps in minutes.
Xlocalize translates your Xcode String Catalogs (.xcstrings) with AI — directly on your Mac.
Open a .xcstrings file, pick your target languages, and let OpenAI (GPT), Anthropic Claude, or Google Gemini fill in accurate, context-aware translations in seconds. Built for iOS, macOS, watchOS and visionOS developers who want to localize faster without leaving Xcode's native format.
CHOOSE YOUR AI
• OpenAI (GPT-5, GPT-4o), Anthropic Claude, and Google Gemini
• Available models are detected automatically from your API key
• Keys are stored securely in the macOS Keychain and never shared
BUILT FOR STRING CATALOGS
• Native .xcstrings editor — plurals, device variations and substitutions are preserved losslessly
• Per-key comments are used as context for more accurate translations
• Translation status workflow: new, translated, don't translate
• Validation hints: placeholder mismatches, untranslated copies, missing translations
FAST BULK LOCALIZATION
• Translate hundreds of keys across many languages in one pass
• Smart rate limiting keeps you within your provider's limits
• Full undo/redo for every edit, including batch operations
• Copy translations between languages, filter, search and sort
PRIVATE BY DESIGN
• No account required — bring your own API key
• Source strings are sent only to the provider you choose, only when you translate
Localize your app into 40+ languages and ship sooner. Download Xlocalize and turn your String Catalog into a fully translated app today.
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Premium is an auto-renewable subscription (monthly or yearly) billed to your Apple Account. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
What's new in 1.5.1:
• Translation errors are now visible. If a translation can't be completed, Xlocalize tells you exactly why — no API credit left, a model your key can't use, a network problem — instead of finishing as if nothing was wrong.
• The progress bar counts failures as they happen, so a run that isn't working no longer looks like one that is.
• Your API key is now verified with a real translation request, so an unusable key is caught before you start a large batch.
• Cancelling now really stops the run and keeps the translations already completed.
• Longer timeouts and automatic retries for slower reasoning models and rate limits.
• Translating into several languages at once now runs them in order, with accurate progress and a correct completion percentage.
The developer, Develak, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- PRIOMAT LLC
- Size
- 2 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 14 or later.
- Mac
Requires macOS 14 or later.
- Mac
- Languages
English and 32 more
- English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Xlocalize Pro - Yearly USD 49.99
- Xlocalize Pro - Monthly USD 9.99
- Copyright
- © 2025 Develak