JSON Beautifier & Validator – Free Online JSON Formatter
Beautify, Format, Validate & Pretty Print JSON Code Instantly
Use our free JSON Beautifier to prettify code online by formatting and validating JSON data. Pretty print JSON with syntax highlighting, error detection, and clean indentation for better readability.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It is commonly used to transmit data between a server and a web application, or between different parts of a system.
A JSON structure is made up of key-value pairs and can represent objects, arrays, strings, numbers, booleans, and null.
Example:
{
"name": "PrettifyCode",
"url": "https://prettifycode.com",
"message": "I love prettifycode.com!",
"features": ["Beautify", "Minify", "Validate"],
"user":
{
"type": "developer",
"happy": true
}
}What is a JSON Beautifier?
A JSON Beautifier is a tool that formats raw or minified JSON data into a clean, readable structure with proper indentation, spacing, and line breaks. This makes it easier to:
- Understand and debug complex data structures
- Spot syntax errors or missing brackets
- Share clean and maintainable JSON with others
- Work with compressed or minified JSON files
If you receive or work with compacted JSON (e.g., minified API responses), a beautifier helps you restore readability instantly.
Why PrettifyCode JSON Beautifier?
There are many JSON beautifiers online, but PrettifyCode's tool is specially designed for developers who want:
- Instant validation: Check if your JSON is valid before formatting
- Smart error detection: Get helpful suggestions for common JSON syntax issues
- Flexible formatting: Customize indentation size to match your project standards
- Minification option: Compress JSON for production use when needed
- No registration required: Start formatting immediately without creating accounts
- Privacy-focused: All processing happens in your browser
Whether you're working with API responses, configuration files, or data exports, our JSON Beautifier ensures your data is both valid and readable.
JSON Beautifier FAQs
Common questions about our JSON formatting tool
How do I make my JSON data more readable online?
Paste your JSON into our JSON Beautifier, adjust formatting options like indentation size, then click "Beautify" to transform it into clean, well-structured data.
Can this tool handle nested JSON objects and arrays?
Yes, our JSON Beautifier fully supports complex nested structures with proper indentation for each level, making it easy to understand the data hierarchy.
Does the JSON formatter preserve data types?
Absolutely! Our tool maintains all data types including strings, numbers, booleans, null values, objects, and arrays while improving the formatting.
Can I use keyboard shortcuts in the JSON editor?
Yes! Our editor supports common keyboard shortcuts like Ctrl+Z for undo, Ctrl+Y for redo, and Ctrl+F for find, making your formatting experience more efficient.
Can I format minified or compressed JSON?
Yes! Our tool excels at transforming minified JSON into readable code. It will properly indent and structure even the most compressed JSON data.
Will beautifying my JSON affect its functionality?
No. Beautifying only affects whitespace and formatting which is ignored when JSON is parsed. For production APIs, you might want to minify again, but during development, beautified JSON is much easier to work with.
Does the tool fix syntax errors in my JSON?
While our tool highlights syntax issues and provides helpful error messages, it's designed for formatting rather than fixing code logic. It will help you identify problems more easily through better formatting.
Related Tools
Working with JSON? You might also find these tools helpful: