JSON Formatter & Beautifier

Format, validate, and beautify your JSON data with syntax highlighting. Perfect for developers, API testing, and data visualization.

⚙️ Formatting Options

📝 Input JSON

0 characters 0 lines Ready

✨ Formatted JSON

0 characters 0 lines 0% compression

🔧 How to Use the JSON Formatter

1
Paste Your JSON
Copy and paste your JSON data into the input area. You can also use the "Sample" button to see how the formatter works with example data.
2
Choose Format Options
Select your preferred indentation (2, 4, 8 spaces, or tabs), output format, and additional options like sorting keys or removing comments.
3
Format & Validate
Click "Format & Beautify JSON" to process your data. The tool will validate the JSON and show any errors with detailed explanations.
4
Copy or Download
Copy the formatted JSON to your clipboard or download it as a .json file. The tool shows compression statistics and character counts.
Advertisement Space - 728x90 Leaderboard

❓ Frequently Asked Questions

What is JSON formatting and why is it important? +
JSON formatting (or beautifying) adds proper indentation, line breaks, and spacing to make JSON data human-readable. Well-formatted JSON is easier to debug, understand, and maintain. It's essential for API development, configuration files, and data exchange between systems.
Can this tool handle large JSON files? +
Yes, our JSON formatter can handle large JSON files efficiently. However, for very large files (over 1MB), processing might take a moment. The tool includes memory optimization and will show progress indicators for large datasets. For extremely large files, consider breaking them into smaller chunks.
What's the difference between formatted and minified JSON? +
Formatted JSON includes indentation, line breaks, and spacing for readability, making it larger but easier to read and debug. Minified JSON removes all unnecessary whitespace, making it smaller and faster to transmit over networks, but harder for humans to read. Use formatted for development and minified for production.
How does the JSON validation work? +
Our validator checks JSON syntax in real-time using JavaScript's built-in JSON parser. It identifies common errors like missing quotes, trailing commas, unclosed brackets, and invalid characters. Error messages include line numbers and specific descriptions to help you fix issues quickly.
Is my JSON data safe when using this tool? +
Absolutely! All JSON processing happens locally in your browser using JavaScript. Your data is never sent to our servers or stored anywhere online. This ensures complete privacy and security for sensitive JSON data, making it safe for confidential API responses or configuration files.
Advertisement Space - 300x250 Medium Rectangle