Format JSON Translation Files

Validate and prettify i18n translation JSON files (en.json, de.json) used in React, Vue, and Next.js apps.

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i18n tips

🌐

Translation files often grow to thousands of keys. Formatting with consistent 2-space indentation makes them readable and diff-friendly.

🔍

Missing closing brackets are hard to spot by eye. The JSON validator instantly shows the exact line and column of any syntax error.

💡

Minify your translation JSON before shipping to production — smaller files mean faster initial page loads for your users.

🌳

Use tree view to navigate deeply nested translation key groups without scrolling through hundreds of flat keys.

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Enter your data into the tool above. Everything stays local to your browser.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

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Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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