{ } JSON Formatter

What is a JSON Formatter?

A JSON formatter beautifies, minifies, fixes, and validates JSON data. It handles multiple concatenated JSON objects (like Kafka/Debezium messages) and automatically repairs common issues like trailing commas, unquoted keys, and single quotes.

How to Use

1. Paste your JSON in the input panel.
2. Click Beautify to format with proper indentation.
3. Click Minify to compress JSON to a single line.
4. Click Validate & Fix to automatically repair common errors.
5. Copy the result with one click.

Why Use This Tool?

• ✅ Automatically fixes common JSON errors
• ✅ Handles multiple root objects
• ✅ No login, no limits, no watermark
• ✅ Works offline in your browser
• ✅ Perfect for developers, data analysts, and API testing

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Frequently Asked Questions

Can it fix invalid JSON?
Yes, it automatically repairs trailing commas, unquoted keys, single quotes, and multiple root elements.

Can it handle multiple JSON objects?
Yes, it supports multiple concatenated JSON objects (e.g., from Kafka streams).

Is this tool free?
Yes, fully free with no restrictions. Everything runs in your browser. See our Privacy Policy.

Does it store my JSON data?
No. All processing happens locally on your device.