JSON Formatter & Validator
A powerful tool to format, validate, minify, and convert JSON data. Perfect for debugging and making JSON more readable.
Input JSON
Output
Tips
- Use Format JSON to make your JSON readable with proper indentation.
- Use Minify JSON to reduce file size by removing all whitespace.
- Use Validate JSON to check if your JSON is correctly structured.
- Use Convert to JS Object to transform JSON into JavaScript object notation.
- The tool will automatically validate your JSON as you type.
How to Use the JSON Formatter
Paste Your JSON
Copy and paste your JSON data into the input textarea. The tool will automatically detect and validate the syntax as you type.
Choose Your Mode
Select from Format, Minify, Validate, or Convert to JS Object modes. Each mode processes your JSON differently for various use cases.
Customize Settings
For formatting mode, adjust the indent size to match your coding style. Choose between 2, 4, 6, or 8 spaces for indentation.
Copy Results
Once processed, copy the formatted, minified, or converted output to your clipboard with a single click for use in your projects.
Key Features
Real-time Validation
Instantly validate JSON syntax as you type with clear error messages and visual indicators for valid/invalid JSON structure.
Multiple Modes
Format for readability, minify for production, validate syntax, or convert to JavaScript object notation - all in one tool.
Detailed Analytics
Get comprehensive statistics about your JSON including file size, total keys, and nesting depth for optimization insights.
Frequently Asked Questions
What is JSON formatting and why is it important?
JSON formatting involves adding proper indentation, line breaks, and spacing to make JSON data human-readable. Well-formatted JSON is easier to debug, review, and maintain, especially when working with large datasets or API responses.
When should I minify JSON?
Minify JSON when you need to reduce file size for production environments, API responses, or data storage. Minified JSON removes all unnecessary whitespace, reducing bandwidth usage and improving load times, though it becomes harder to read.
How does JSON validation work?
JSON validation checks if your data follows proper JSON syntax rules including correct bracket/brace pairing, proper string quoting, and valid data types. Our tool provides real-time validation with specific error messages to help you identify and fix syntax issues.
What's the difference between JSON and JavaScript objects?
JSON requires quoted property names and supports limited data types, while JavaScript objects allow unquoted property names and additional data types like functions. Our converter transforms JSON to valid JavaScript object notation for direct use in code.
Is my data safe when using this JSON formatter?
Yes, all JSON processing happens entirely in your browser - no data is sent to external servers. Your JSON data remains private and secure on your device throughout the formatting, validation, and conversion process.