JSON Validator
Validate JSON syntax and check for errors. Get detailed feedback on your JSON structure.
Valid JSON
JSON is properly formatted and valid
JSON Input
Paste your JSON here to validate its syntax and structure
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JSON Validation Guide
Common JSON Errors
- • Missing or extra commas
- • Unquoted keys or values
- • Single quotes instead of double quotes
- • Trailing commas in objects/arrays
- • Unescaped special characters
- • Missing closing brackets or braces
Validation Features
- • Real-time syntax checking
- • Detailed error descriptions
- • Line and character position
- • Structure analysis
- • Statistics and metrics
- • Sample data for testing
JSON Syntax Rules
✅ Valid
- • Double quotes for strings
- • Proper comma placement
- • Escaped special characters
- • Balanced brackets and braces
- • Standard data types only
❌ Invalid
- • Single quotes around strings
- • Trailing commas
- • Unescaped control characters
- • Comments or undefined values
- • Functions or methods