Flutter JSON Auto-Translator

Auto-translate and sync Flutter localization JSON files from selected Dart strings. Supports both English and Arabic source text.

Features

Shows a Code Action (lightbulb) when you select a string in a Dart file
Two commands: Translate to all langs (English) and Translate to all langs From Ar (Arabic)
Translates Arabic text to English first for key suggestion, then to all target languages
Prompts for a JSON key with auto-generated camelCase suggestion
Finds all .json files in your translations directory
Writes original text to the source locale file (e.g. en-US.json)
Translates into every other locale using google-translate-api-x
Appends each new key-value pair at the bottom of each JSON file

Open a Dart file in a Flutter project with assets/translations/*.json
Select a string literal (e.g. 'Welcome to our app') or Arabic text
Click the lightbulb or open the command palette
Choose:
- Translate to all langs — for English source text
- Translate to all langs From Ar — for Arabic source text (automatically translates to English for key suggestion)
Confirm or edit the suggested camelCase JSON key
Wait for translation to complete — all locale files are updated

Text('Welcome to our app')

Result in assets/translations/ar-EG.json:

{
  "existing_key": "existing value",
  "welcome_message": "مرحبًا بكم في تطبيقنا"
}

Setting	Default	Description
`flutterJsonAutoTranslator.translationsPath`	`assets/translations`	Relative path from workspace root to translation JSON files
`flutterJsonAutoTranslator.sourceLocaleFile`	`en-US.json`	Source locale filename — receives original text (or English translation for Arabic flow)
`flutterJsonAutoTranslator.abbreviateLongKeys`	`false`	When enabled, suggested keys use only the first N words for very long text
`flutterJsonAutoTranslator.maxKeyWords`	`5`	Maximum words to use in abbreviated keys (only when `abbreviateLongKeys` is enabled)
`flutterJsonAutoTranslator.stripSelection`	`true`	Strip surrounding quotes (`'`, `"`, `'''`, `"""`) and trailing semicolons from selected text

You can configure these in VS Code Settings → Extensions → Flutter JSON Auto-Translator, or in .vscode/settings.json.

Translation uses the free unofficial Google Translate client — rate limits may apply
Language codes are derived from filenames: ar-EG.json → ar, fr-FR.json → fr
If a key already exists in a file, that file is skipped