JSON Formatter

✅ Format & Minify✅ Collapsible View✅ Syntax Highlighting✅ Error Detection✅ Dark Mode

Input JSON

Formatted JSON

About JSON Formatter

The JSON Formatter was created to help folks with debugging. As JSON data is often output without line breaks to save space, it can be extremely difficult to actually read and make sense of it. This tool hoped to solve the problem by formatting and beautifying the JSON data so that it is easy to read and debug by human beings.

To further expand the debugging capabilities, advanced JSON validation was soon added following the description set out by Douglas Crockford of json.org in RFC 4627. It has since been updated to allow validation of multiple JSON standards, including both current specifications RFC 8259 and ECMA-404.

Most recently, the capability to fix common JSON errors was added. If enabled, it will:

  • Replace incorrect quotes
  • Add missing quotes
  • Correct numeric keys
  • Lowercase literals
  • Escape unescaped characters
  • Remove comments and trailing commas

Frequently Asked Questions

What is JSON formatting?

JSON formatting is the process of structuring JSON data in a way thats easily readable by humans. It typically involves adding proper indentation, line breaks, and spacing to make the hierarchical structure of the data clear and understandable.

Why should I format my JSON?

Formatting JSON makes it easier to:

  • Debug and troubleshoot issues
  • Review and understand data structure
  • Identify syntax errors
  • Make manual edits to the data
  • Share code with team members

Whats the difference between formatting and minifying?

Formatting adds spacing and line breaks to make JSON readable, while minifying removes all unnecessary characters (whitespace, newlines) to reduce file size. Use formatting for debugging and development, and minifying for production and data transfer.

Is my data secure when using this tool?

Yes, this JSON formatter processes all data directly in your browser. No data is sent to any server or stored anywhere. You can even use it offline once the page is loaded.

What JSON standards are supported?

Our tool supports multiple JSON standards including RFC 8259 and ECMA-404. It can handle complex JSON structures, nested objects, arrays, and various data types while maintaining strict compliance with these specifications.