JSON Formatter/Validator – Useful Solutions

JSON Formatter & Validator

Format, validate, and beautify JSON data with real-time error detection

Ready to validate JSON

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JSON Format Reference

Valid JSON Rules:

{} - Objects must use curly braces

[] - Arrays must use square brackets

"key" - Strings must use double quotes

true/false - Boolean values (lowercase)

null - Null values (lowercase)

123.45 - Numbers (no leading zeros)

Common Errors:

❌ Single quotes: 'key'

❌ Trailing commas: {"key": "value",}

❌ Unquoted keys: {key: "value"}

❌ Comments: // not allowed