JSON Formatter User Guide
Learn how to beautify and validate JSON data for better readability and debugging
Smart Formatting
Automatically adds proper indentation and line breaks for optimal readability
Syntax Validation
Validates JSON syntax and highlights errors for easy debugging
Easy Copy
One-click copy functionality for formatted JSON output
Customizable Indentation
Configurable indentation settings (2 spaces by default)
Input JSON Data
Paste or enter the JSON data that needs to be formatted in the input box. The tool accepts both minified and unformatted JSON.
Click Format
Click the "Format" button, and the tool will automatically format the JSON and validate its syntax for errors.
Review Results
View the formatted JSON with proper indentation and line breaks. Check for any syntax errors highlighted by the tool.
Copy Formatted JSON
Click the "Copy" button to copy the formatted JSON to your clipboard for use in your applications.
API Development
- Debug API response data
- Format request payloads
- Validate JSON structure
Configuration Files
- Format config.json files
- Package.json beautification
- Settings file organization
Data Analysis
- Log file analysis
- Data export formatting
- JSON dataset preparation
Documentation
- Code documentation
- API documentation
- Example data formatting
Best Practices
- Always validate JSON syntax before using in production
- Use consistent indentation (2 spaces recommended)
- Keep JSON structure logical and well-organized
- Remove unnecessary whitespace for production use
Important Notes
- Input must be in valid JSON format (no comments or trailing commas)
- The tool uses 2 spaces for indentation by default
- Large JSON files may take longer to process
- Some JSON extensions (comments, trailing commas) are not supported
Q: What if my JSON has syntax errors?
A: The tool will highlight syntax errors and provide information about what needs to be fixed. Common issues include missing quotes, commas, or brackets.
Q: Can I format JSON with comments?
A: No, standard JSON doesn't support comments. If you have JSON with comments, you'll need to remove them first or use a JSONC formatter.
Q: How large can my JSON file be?
A: The tool can handle large JSON files, but very large files (several MB) may take longer to process. For optimal performance, consider breaking very large files into smaller chunks.
Q: Can I customize the indentation?
A: Currently, the tool uses 2 spaces for indentation. This is the standard practice for JSON formatting and provides good readability.