Working with JSON across different languages can be a headache — manually swapping strings, mishandling keys, or breaking structures, it’s a recipe for bugs. That’s exactly why we launched the JSON Translator feature at Format JSON Online, the developer-first toolkit for everything JSON.
Why It Matters for Devs & i18n Workflows
- Preserves structure, keys, and placeholders — Only the human-readable text gets translated, so your JSON structure stays intact.
- Supports 100+ languages — Full-spectrum i18n support, including RTL languages.
- Bulk processing of nested objects and arrays — No need to un-nest complex files manually.
Key Features Overview
Paste or Upload JSON Files
Work with locale files or any JSON data — no reformatting or clean-up needed.
AI-Powered, Smart Translation
Only text values are translated. Non-text values remain untouched.
Seamless Language Selection
A searchable dropdown with language names and codes for quick selection.
Advanced Insights
Get word and character counts, translation processing time, and stats post-translation.
Clean, Downloadable Output
Copy to clipboard or download your translated JSON instantly — ready for deployment.
How It Works — Step-by-Step
- Paste your JSON or upload a .json file.
- Choose your source and target language.
- Hit “Translate JSON” — AI takes over and translates values carefully.
- Copy or download the translated file. It handles nested JSON structures beautifully and ensures your app's magic won't break.
Why It Stands Out
- Privacy-Focused — Translation happens in your browser. No data leaves your device.
- Developer-Friendly — Fast processing, clean UI, instant download.
- Real i18n Capabilities — Perfect for building multilingual apps with minimal hassle.
Who Works Best with It
- Frontend developers internationalizing web or mobile apps
- Localization engineers managing translation files
- Backend teams delivering multilingual API data
- Anyone building or testing apps with multiple language support
Use Case Snapshot
Imagine your app supports English and French. Your locale files look like:
{
"greeting": "Hello, world!",
"farewell": "Goodbye!",
"nested": {
"buttonText": "Submit"
}
}
With JSON Translator, you can turn that into French — preserving keys intact:
{
"greeting": "Bonjour, le monde !",
"farewell": "Au revoir !",
"nested": {
"buttonText": "Soumettre"
}
}
Ready to Try It?
Check it out now — it’s free, fast, and fully browser-based:
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