JSON Validator & Formatter
Validate, format, and beautify JSON data instantly. Perfect for developers, testers, and anyone working with JSON.
JSON Input
Input JSON
0 characters
Processing JSON…
Formatted Output
Formatted JSON
0 characters
Validation Result
JSON validation results will appear here
JSON Statistics
Recent Validations
Your JSON validation history will appear here
About JSON Validator
JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate.
Features of this tool:
- Syntax Validation: Check if your JSON is properly formatted
- Beautify/Format: Make your JSON readable with proper indentation
- Minify: Remove whitespace to reduce file size
- Error Detection: Find and fix common JSON errors
- Statistics: Get detailed info about your JSON structure
- History: Keep track of your recent validations
Example of valid JSON:
{
"name": "John Doe",
"age": 30,
"active": true,
"skills": ["JavaScript", "Python"]
}
Common JSON Errors:
- Missing or extra commas
- Unquoted property names
- Trailing commas (not allowed in strict JSON)
- Single quotes instead of double quotes
- Missing closing brackets or braces