String Catalog Translator

Translate Xcode String Catalogs with AI, validate every key before release, and avoid app crashes or bad localization quality.

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Why Teams Switch

Batch translation UI

No More Manual Translations

Translate at scale with AI, preserve placeholders, and improve output quality by adding app-specific context before translation.

Translation progress and completion status

Track Translation Progress

Track translation progress in real time across languages, monitor completed keys, and quickly catch any failed or in-progress work.

Search and filter in string catalog

Add All App Store Languages

Add all App Store languages with one click, then keep everything organized with fast filtering, search, and bulk locale management.

Bulk Editing that Xcode Lacks

Batch Translate

Translate only what you need, apply translations selectively, and fine-tune text manually when needed.

Bulk Actions

Select multiple keys and update review status, remove obsolete entries, or manage large changes in one pass.

Cost Efficient

Built for practical, high-volume localization runs where speed and quality both matter.

What teams say

We localized into multiple languages in a single sprint. Validation checks caught issues that would have shipped to production.”
Nina Patel
iOS Engineer
Compared with manual Xcode editing, this is dramatically faster for large catalogs and way safer for placeholder-heavy strings.”
Andre Kim
Product Manager
Download on the App Store

FAQ

What is String Catalog Translator?

String Catalog Translator is a Mac app that helps iOS teams translate and validate Xcode String Catalog files faster using AI-assisted workflows.

Can it prevent localization-related app crashes?

Yes. It validates placeholder arguments, substitutions, and format specifiers to catch issues that can break strings at runtime.

How does AI translation work?

The app uses AI translation workflows to generate locale suggestions quickly, then lets you review and apply only the translations you want.

Can I translate only new or missing keys?

Yes. You can filter for untranslated or stale keys and run targeted translation instead of reprocessing the entire catalog.

Can I edit translations manually?

Yes. You can review generated strings and make manual corrections before finalizing updates.

Is String Catalog Translator free?

No. String Catalog Translator is a paid Mac app built for production localization workflows and faster release cycles.

Who is this app for?

It is built for iOS developers, indie teams, and product teams that localize SwiftUI or UIKit apps using Xcode String Catalogs.

Where can I download it?

You can download String Catalog Translator from the App Store using the download buttons on this page.