JSON Formatter / Prettifier
Beautify, validate, and format your JSON data instantly. Free online tool with no registration required.
How to Use JSON Formatter
Paste Your JSON
Copy and paste your JSON data into the input area. It can be minified, formatted, or even messy - our tool will handle it.
Click Format
Click the "Format JSON" button to beautify your JSON with proper indentation and line breaks.
Copy or Download
Copy the formatted JSON to your clipboard or download it as a file for use in your projects.
Features
- ✓Syntax highlighting for better readability
- ✓Automatic indentation and formatting
- ✓Error detection and validation
- ✓One-click copy to clipboard
- ✓Download formatted JSON as file
- ✓Works with any valid JSON data
Use Case Scenarios
API Development
Format API responses for better debugging and documentation.
Configuration Files
Format JSON configuration files for better maintainability.
Data Analysis
Format large JSON datasets for easier analysis and review.
Code Reviews
Format JSON in pull requests for better code review experience.
Pro Tips
Use keyboard shortcuts: Ctrl+A to select all, Ctrl+C to copy
Large JSON files are automatically handled - no size limits
Invalid JSON will show clear error messages with line numbers
Formatted JSON maintains data integrity - only whitespace is changed