iOS · Localizable.strings · 46 languages · Free

Translate Localizable.strings without breaking a single `%@`

Upload en.lproj/Localizable.strings, pick locales, and get back de.lproj/Localizable.strings, ja.lproj/Localizable.strings… — every %@ and printf %d/%ld specifier lands exactly where NSLocalizedString expects it.

Translate your .strings file → $ pip install kaeris

✓ %@ / %d / %ld printf-safe ✓ Real .strings out, NSLocalizedString-ready ✓ One file per locale (.lproj-friendly) ✓ Verify-meaning QA ✓ No account needed

Localize your iOS app in 3 steps

Upload Localizable.strings

Drop en.lproj/Localizable.strings in, or run kaeris translate en.lproj/Localizable.strings --langs de,ja,ar.

Pick target locales

46 languages, named to match Apple's language codes for your .lproj folders.

Ship

Rename each download's folder to de.lproj/, add it in Xcode's Localization settings, build.

Real .strings, quoting and all

Before → after

            
            en.lproj/Localizable.strings
          
/* en */
"welcome" = "Welcome back, %@!";
"items_left" = "%d items left in stock";
"save" = "Save changes";

            
            de.lproj/Localizable.strings
          
/* de */
"welcome" = "Willkommen zurück, %@!";
"items_left" = "Noch %d Artikel auf Lager";
"save" = "Änderungen speichern";

KAERIS translates the flat "key" = "value"; pairs that make up most of an app's copy — the same content NSLocalizedString(@"welcome", nil) reads at runtime. Quantity-aware variants that live in a .stringsdict or an Xcode 15+ String Catalog (.xcstrings) are a separate plist/JSON structure this pass doesn't rewrite yet — translate their string values individually for now.

Built for iOS

%@ / %d / %ld printf-safe

Objective‑C/Swift format specifiers are never dropped, reordered or mistranslated across all 46 target locales.

NSLocalizedString-ready

Output is a real .strings file with correct quoting/escaping — drop it in and Xcode reads it as-is.

One file per locale

Each download is named for its language — rename the folder to <lang>.lproj and you're done.

One CLI command

kaeris translate en.lproj/Localizable.strings --langs de,ja,ar — scriptable straight into a Fastlane lane or CI job.

Why KAERIS

✓ Placeholder-safe — %@/%d is never dropped or mistranslated.

✓ Format-native — real .strings out, correctly quoted, not a flattened wrapper.

✓ Verify-meaning QA — every string is back-translated to catch meaning drift before you ship.

✓ No account needed — drag & drop free up to 10,000 characters, or use the CLI/API.

Ship your iOS app in every market

46 languages, printf-safe, .lproj-ready. Free to start, no account required.

$ pip install kaeris
$ kaeris translate en.lproj/Localizable.strings --langs de,ja,ar

Translate your .strings files now →

Translate Localizable.strings without breaking a single %@