Convert ARB to iOS .stringsdict online

Upload a Flutter ARB file and download it as iOS .stringsdict. Translation keys, plurals and placeholders are preserved. Free, no account needed.

Pick the source format or let the converter detect it from the file.

Used when the source format holds one language per file. Also used as the source language for XLIFF output.

Choose the format you want to download.

iOS .stringsdict

A property list that holds plural rules for Apple platforms. Each key defines variants such as one, few, many and other, matching the CLDR plural categories of the language.

One file per language. Format documentation

Need it the other way round? Convert iOS .stringsdict to ARB.

From: Flutter ARB

Application Resource Bundle files are JSON documents with ICU message syntax and optional @metadata entries. Flutter's gen_l10n tool turns them into typed Dart localization classes.

Used by: Flutter, Dart intl, gen_l10n. One language per file. Read the ARB format guide.

{ "@@locale": "en", "hello.world": "Hello World!", "@hello.world": { "description": "Hello world message" } "my_address": "Address", }
{
  "@@locale": "en",
  "hello.world": "Hello World!",
  "@hello.world": {
    "description": "Hello world message"
  }
  "my_address": "Address",
}

To: iOS .stringsdict

A property list that holds plural rules for Apple platforms. Each key defines variants such as one, few, many and other, matching the CLDR plural categories of the language.

Used by: iOS, macOS. One language per file. Read the iOS .stringsdict format guide.

<plist version="1.0"> <dict> <key>users-found-plural</key> <dict> <key>NSStringLocalizedFormatKey</key> <string>%#@value@</string> <key>value</key> <dict> <key>NSStringFormatSpecTypeKey</key> <string>NSStringPluralRuleType</string> <key>NSStringFormatValueTypeKey</key> <string>d</string> <key>zero</key> <string>No users found</string> <key>one</key> <string>One user found</string> <key>other</key> <string>%d users found</string> </dict> </dict> </dict> </plist>
<plist version="1.0">
  <dict>
    <key>users-found-plural</key>
    <dict>
      <key>NSStringLocalizedFormatKey</key>
      <string>%#@value@</string>
      <key>value</key>
      <dict>
        <key>NSStringFormatSpecTypeKey</key>
        <string>NSStringPluralRuleType</string>
        <key>NSStringFormatValueTypeKey</key>
        <string>d</string>
        <key>zero</key>
        <string>No users found</string>
        <key>one</key>
        <string>One user found</string>
        <key>other</key>
        <string>%d users found</string>
      </dict>
    </dict>
  </dict>
</plist>

How to convert ARB to iOS .stringsdict

  1. Drop your .arb file into the converter above, or paste its content.
  2. Confirm the language of the file. It is guessed from the file name, for example de.json or messages_pt-BR.properties.
  3. Click Convert. You get one .stringsdict file per language.
  4. Preview the result, copy it or download the files.

What changes between ARB and iOS .stringsdict

  • Keys, texts, plural forms and placeholders are mapped one to one. Comments and descriptions are kept when both formats support them.

Convert and translate in one place

If you need the iOS .stringsdict file in more languages, the fastest route is a free SimpleLocalize project: import the ARB file, add languages, run auto-translation with DeepL, Google Translate, OpenAI, Claude or Gemini, and download the result as iOS .stringsdict. The CLI does the same from CI with upload and download commands, so the conversion becomes part of your build. See also translating ARB files.

Frequently asked questions

Is the converter free?

Yes. There is no signup and no limit on the number of conversions beyond a few requests per second.

Are my files stored?

No. The file is parsed in memory, converted and returned in the same request. Nothing is written to disk or a database.

What about plurals and placeholders?

Plural forms are normalized to ICU message syntax and written back in the native form of iOS .stringsdict. Placeholders are kept, and Apple and Android specific syntax is translated between platforms. Read more in the pluralization guide.

Translate your iOS .stringsdict files

  • Import ARB or iOS .stringsdict files into a free project
  • Auto-translate with DeepL, Google, OpenAI, Claude or Gemini
  • Download in any of the supported formats or publish to the CDN
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