JSON Pretty Print
Instantly format and beautify JSON data with our free online tool. Features customizable indentation, key sorting, and syntax validation. Perfect for making JSON readable and maintainable.
Instantly format and beautify JSON data with our free online tool. Features customizable indentation, key sorting, and syntax validation. Perfect for making JSON readable and maintainable.
All processing happens in your browser - no data is sent to any server. Format unlimited files with confidence, knowing your code remains private and secure.
Key Features
Customizable Indentation
Choose between 2, 4, or 8 spaces for perfect code alignment.
Key Sorting
Option to sort object keys alphabetically for consistent output.
Syntax Validation
Catch and highlight JSON syntax errors while formatting.
One-Click Copy
Copy formatted JSON to clipboard with a single click.
Examples
Basic JSON Formatting:
Simple JSON formatting with proper indentation and array formatting.
Input:
{"name":"John Doe","age":30,"email":"john@example.com","active":true,"tags":["developer","javascript"]}Output:
{
"name": "John Doe",
"age": 30,
"email": "john@example.com",
"active": true,
"tags": [
"developer",
"javascript"
]
}Nested Objects and Arrays:
Formatting complex JSON with nested objects, arrays, and various data types.
Input:
{"store":{"name":"My Store","products":[{"id":"p1","name":"Laptop","price":999.99,"specs":{"cpu":"3.2GHz","ram":"16GB"}},{"id":"p2","name":"Mouse","price":29.99,"specs":{"type":"wireless","dpi":1600}}],"metadata":{"lastUpdated":"2025-09-29T14:30:00Z","version":"2.1.0"}}}Output:
{
"store": {
"name": "My Store",
"products": [
{
"id": "p1",
"name": "Laptop",
"price": 999.99,
"specs": {
"cpu": "3.2GHz",
"ram": "16GB"
}
},
{
"id": "p2",
"name": "Mouse",
"price": 29.99,
"specs": {
"type": "wireless",
"dpi": 1600
}
}
],
"metadata": {
"lastUpdated": "2025-09-29T14:30:00Z",
"version": "2.1.0"
}
}
}How to Use
Paste JSON
Copy your JSON data and paste it into the input area, or use the Load Sample button to try with example data.
Choose Options
Select your preferred indentation size and whether to sort object keys.
Format
Click "Format JSON" to beautify your JSON with proper indentation and line breaks.
Copy Result
Review the formatted JSON and use the "Copy to Clipboard" button to copy the result.
Frequently Asked Questions
What does the JSON Pretty Print tool do?
Our JSON Pretty Print tool beautifies and formats JSON data with proper indentation and line breaks. It also validates syntax, offers key sorting, and provides customizable formatting options.
Is my JSON data secure when using the formatter?
Yes! All formatting happens directly in your browser. We never store or transmit your JSON data to any server, ensuring complete privacy and security.
Can I customize the formatting style?
Yes! You can choose between different indentation sizes (2, 4, or 8 spaces) and enable/disable key sorting to match your preferred style.
Does it validate the JSON?
Yes, the tool automatically validates your JSON and provides clear error messages if any syntax issues are found.
Related Tools
Explore more free formatting and conversion tools: