Format, validate and beautify JSON data with instant results.
json
formatter
validator
Options
2 spaces
Actions
About JSON Formatter & Minifier
This free online JSON formatter and minifier tool helps you format, beautify, and minify JSON data with customizable options. Perfect for developers, API testing, and data processing workflows.
Key Features
JSON formatting with customizable indentation (0-8 spaces)
JSON minification to remove whitespace and reduce file size
Real-time syntax validation with detailed error messages
Alphabetical key sorting for consistent formatting
File upload and download capabilities
Auto-validation as you type for instant feedback
One-click copy to clipboard or download as .json file
Use Cases
API development and response formatting
Configuration file cleanup and organization
Data analysis and debugging structured data
Code review preparation for better readability
File optimization to reduce bandwidth usage
Data migration validation and cleaning
Supported Formats
JSON (JavaScript Object Notation)
Formatted JSON with custom indentation
Minified JSON for production use
Sorted JSON with alphabetical keys
Related Keywords
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json beautifier
json minifier
json validator
json pretty print
json parser
json syntax checker
json online tool
format json
minify json
JSON Formatting Best Practices
Use consistent indentation (2 or 4 spaces), sort keys alphabetically for easier comparison, always validate syntax before production use, and minify JSON for production to reduce file size. Remember that JSON doesn't support comments.
Privacy & Security
All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.
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