JSON Validator
Validate JSON input for proper structure and syntax. Format, minify, and analyze JSON data. Perfect for debugging API payloads or configuration files.
JSON Format Guide
✓ Valid JSON
- • Strings must be in double quotes
- • Object keys must be strings
- • No trailing commas
- • Use null instead of undefined
- • Numbers can be integers or decimals
- • Booleans are true or false
- • Arrays can contain mixed types
✗ Common Errors
- • Single quotes instead of double
- • Unquoted object keys
- • Trailing commas
- • Comments (not allowed in JSON)
- • Undefined values
- • Functions or methods
- • Circular references
Sample JSON Data
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