JSON Input
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JSON Output
Format & Minify JSON
Format, validate, and minify your JSON data - perfect for developers and data professionals
Try the JSON formatter with sample data
Free JSON Formatter & Validator - Format JSON Online Instantly
Format, Validate, and Minify JSON Data Online
JSON Formatter
How to Format JSON - Step by Step Guide
Transform minified JSON into beautifully formatted, readable code in 3 simple steps with instant validation
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Step 1 – Paste or Upload Your JSON Data
Copy your JSON string and paste it into the editor, or upload a .json file directly. Our formatter handles minified, formatted, or even invalid JSON with helpful error messages.
Flexible Input: Paste minified JSON, upload files, or try sample data to see instant formatting
Real-time Validation: Automatically detects JSON syntax errors with precise error location and helpful messages
Smart Parsing: Handles complex nested structures, arrays, objects, and special characters with ease
Minified JSON Input
{"event_id":"ufc_303","event_name":"UFC 303: McGregor vs Chandler","date":"2025-07-12","location":{"venue":"T-Mobile Arena","city":"Las Vegas","state":"Nevada","country":"USA"},"main_event":{"fighter_red":{"name":"Conor McGregor","nickname":"The Notorious","record":"22-6-0","stance":"Southpaw","nationality":"Ireland"},"fighter_blue":{"name":"Michael Chandler","nickname":"Iron","record":"23-8-0","stance":"Orthodox","nationality":"USA"},"weight_class":"Lightweight","rounds_scheduled":5,"result":{"winner":"Conor McGregor","method":"TKO","round":3,"time":"4:21"}},"co_main_event":{"fighter_red":"Alex Pereira","fighter_blue":"Jamahal Hill","weight_class":"Light Heavyweight","result":{"winner":"Alex Pereira","method":"KO","round":1,"time":"1:35"}},"attendance":20500,"pay_per_view":{"estimated_buys":1450000,"price_usd":79.99},"metadata":{"description":"Example UFC event data used for formatting and table conversion demos.","formatted_using":"JSON Formatter | JSON Viewer","tool_url":"https://jsontotable.net/json-formatter"}}2
Step 2 – Preview Formatted JSON (Beautiful & Readable)
Watch your minified JSON instantly transform into a beautifully formatted structure. Each level is properly indented with 2 spaces, making it easy to read and understand.
Instant Formatting: See results as you type or paste - formatted with perfect indentation and line breaks
Clean Structure: Consistent 2-space indentation with proper nesting for maximum readability
Syntax Highlighting: Clear visual distinction between keys, values, strings, numbers, and special types
Auto Format→Real-time
Formatted JSON Output
{
"event_id": "ufc_303",
"event_name": "UFC 303: McGregor vs Chandler",
"date": "2025-07-12",
"location": {
"venue": "T-Mobile Arena",
"city": "Las Vegas",
"state": "Nevada",
"country": "USA"
},
"main_event": {
"fighter_red": {
"name": "Conor McGregor",
"nickname": "The Notorious",
"record": "22-6-0",
"stance": "Southpaw",
"nationality": "Ireland"
},
"fighter_blue": {
"name": "Michael Chandler",
"nickname": "Iron",
"record": "23-8-0",
"stance": "Orthodox",
"nationality": "USA"
},
"weight_class": "Lightweight",
"rounds_scheduled": 5,
"result": {
"winner": "Conor McGregor",
"method": "TKO",
"round": 3,
"time": "4:21"
}
},
"co_main_event": {
"fighter_red": "Alex Pereira",
"fighter_blue": "Jamahal Hill",
"weight_class": "Light Heavyweight",
"result": {
"winner": "Alex Pereira",
"method": "KO",
"round": 1,
"time": "1:35"
}
},
"attendance": 20500,
"pay_per_view": {
"estimated_buys": 1450000,
"price_usd": 79.99
},
"metadata": {
"description": "Example UFC event data used for formatting and table conversion demos.",
"formatted_using": "JSON Formatter | JSON Viewer",
"tool_url": "https://jsontotable.net/json-formatter"
}
}3
Step 3 – Download, Minify, or Copy (Production Ready)
Export your JSON in the format you need. Download formatted JSON for development, minify for production to reduce file size, or copy directly to your clipboard.
Download Formatted: Save beautifully formatted JSON file ready for code review and documentation
Minify for Production: Remove all whitespace to create the smallest possible file size for APIs and storage
One-Click Copy: Instantly copy formatted or minified JSON to paste into code editors or applications
Flexible export - choose formatted or minified JSON
3 Options
Download JSON
Save formatted .json file
Minify JSON
Compress to single line
Copy JSON
Copy to clipboard
Export formatted JSON for development or minified for production - perfect for APIs, config files, and data storage
JSON Formatter FAQs
Get answers to common questions about formatting and validating JSON
A JSON Formatter is a tool that helps you format, validate, and beautify JSON data. It makes JSON easier to read by adding proper indentation and line breaks, and can also minify JSON by removing unnecessary whitespace.
Simply paste your JSON data into the input area on the left, and the formatter will automatically validate and format it. You can toggle between formatted (pretty-printed) and minified (compact) versions using the Format/Minify button.
Yes! Click the "Upload" button to select a .json file from your computer. The file contents will be loaded into the editor for formatting.
If your JSON contains syntax errors, the formatter will display an error message explaining what went wrong. This helps you identify and fix issues in your JSON data.
Absolutely! After formatting your JSON, click the "Download" button to save the formatted or minified version as a .json file to your computer.
Format (or beautify) adds proper indentation and line breaks to make JSON human-readable. Minify removes all unnecessary whitespace to create the smallest possible file size, ideal for production use or API responses.
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