Minified JSON
Format & Minify JSON
Format, validate, and minify your JSON data - perfect for developers and data professionals
Try the JSON formatter with sample data
JSON Minifier - Minify JSON Online Instantly
Compress JSON and Reduce File Size
JSON Minifier
Remove whitespace and optimize your JSON data
How to Minify JSON - Step by Step Guide
Compress JSON safely in 3 steps to reduce file size and speed up transfers
1
Step 1 – Paste or Upload JSON to Minify
Paste formatted JSON or upload a .json file. The minifier accepts large files, nested objects, and arrays.
Flexible Input: Paste pretty JSON, upload files, or try sample data
Instant Validation: Detects invalid JSON with clear error messages
Structure Safe: Removes whitespace without changing the data
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 event data used for JSON minifier demos.",
"minified_using": "JSON Minifier",
"tool_url": "https://jsontotable.net/json-minifier"
}
}2
Step 2 – Preview Minified JSON Output
The output panel shows a compact JSON string with whitespace removed to reduce size.
Compact Output: Removes spaces, tabs, and line breaks safely
Smaller Payloads: Reduce response sizes for faster transfers
Data Preserved: Minification never alters keys or values
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 event data used for JSON minifier demos.","minified_using":"JSON Minifier","tool_url":"https://jsontotable.net/json-minifier"}}3
Step 3 – Download or Copy the Minified JSON
Save the minified JSON file for production or copy it directly to your clipboard.
Download Minified: Save a lightweight .json file
Copy Instantly: One click to copy the minified output
Production Ready: Use smaller payloads in APIs and storage
Flexible export - choose formatted or minified JSON
2 Options
Download JSON
Save minified .json file
Copy JSON
Copy to clipboard
Export formatted JSON for development or minified for production - perfect for APIs, config files, and data storage
JSON Minifier FAQs
Quick answers about minifying JSON safely and effectively.
A JSON Minifier removes unnecessary whitespace from JSON to reduce file size while preserving the data structure.
No. Minification only removes whitespace, so the JSON remains valid and identical in meaning.
Yes. You can toggle back to formatted JSON using the Format/Minify control in the output panel.
Yes. Use the Upload button to load a .json file, then minify it in the output.
After minifying, click Download to save the compact JSON file.
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