JSON Formatter & Validator

Format, validate, and minify JSON data with syntax highlighting and detailed error reporting

JSON Input

Indent Size

Sort Keys Alphabetically

Upload JSON File (max 5MB)

JSON Content

Formatted JSON

Valid

{
  "name": "John Doe",
  "age": 30,
  "email": "[email protected]",
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "zipcode": "10001"
  },
  "hobbies": [
    "reading",
    "coding",
    "traveling"
  ],
  "isActive": true,
  "lastLogin": null
}

Statistics

Characters: 316

Lines: 17

Size: 316 B

Objects: 2

Arrays: 1

Strings: 8

Numbers: 1

Booleans: 1

Nulls: 1

How to Use

📝 Format

Pretty-print JSON with proper indentation and readable formatting. Configure indent size and key sorting.

🗜️ Minify

Compress JSON by removing all unnecessary whitespace and line breaks for production use.

✅ Validate

Check JSON syntax and get detailed error messages with line numbers and fix suggestions.

Pro Tips: Upload files up to 5MB, use keyboard shortcuts Ctrl+A to select all, and download formatted results. All processing happens locally - your data never leaves your device.

JSON Formatter & Validator

📝 Format

🗜️ Minify

✅ Validate

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