JSON Formatter & Validator
Format, validate, and analyze your JSON data with this powerful online tool
Validation Results
No JSON to validate
Enter or paste your JSON data to validate and format it. The results will appear here.
JSON Statistics
Object Keys
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Array Items
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String Values
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Numeric Values
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Boolean Values
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Null Values
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Depth Level
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File Size
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Convert JSON to Other Formats
Select a conversion option above
Advanced JSON Tools
JSON Diff
Compare two JSON objects and highlight the differences between them.
JSON Merge
Merge multiple JSON objects into one with customizable merging rules.
JSON Sort
Sort JSON objects alphabetically by keys or array elements by values.
JSON Query
Query JSON data using JSONPath expressions to extract specific values.
JSON Schema
Generate JSON Schema from your JSON data or validate against a schema.
JSON Transform
Transform JSON data using JavaScript-like transformation rules.
JSON Examples
{
"name": "John Doe",
"age": 30,
"isActive": true,
"address": {
"street": "123 Main St",
"city": "New York"
},
"hobbies": ["reading", "hiking", "coding"]
}
📚 JSON Learning Resources
JSON Basics
JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write.
Validation Rules
Valid JSON requires proper syntax: double quotes for strings, correct comma usage, and matching brackets/braces.
Common Uses
JSON is widely used for APIs, configuration files, NoSQL databases, and data storage/transfer between systems.
Data Types
JSON supports strings, numbers, booleans, null, objects, and arrays. Dates and functions are not natively supported.
Performance Tips
Minify JSON for production, validate before parsing, and consider streaming for large JSON files.
Security
Always sanitize JSON inputs to prevent injection attacks and be cautious with eval() or insecure parsers.
Dark Mode
Note: This tool processes your JSON data entirely in your browser. No data is sent to any server, ensuring complete privacy. For very large JSON files, performance may vary based on your device capabilities.