JSON Formatter & Validator

Format, prettify, minify, and validate JSON data. Make your JSON human-readable or compress it for production.

Input
Paste your JSON here
Output
Formatted JSON

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's the most common format for data exchange in web applications.

Why Format JSON?

Formatting JSON makes it easier to:

  • Read and understand complex nested structures
  • Debug data issues by seeing the structure clearly
  • Share with team members in a human-readable format
  • Validate that your JSON is syntactically correct

Features of This Tool

Format/Prettify

Converts minified JSON into a human-readable format with proper indentation and line breaks.

Minify

Removes all unnecessary whitespace to reduce file size, perfect for production use.

Validate

Checks if your JSON is syntactically valid and highlights any errors.

JSON Syntax Rules

  • Data is in name/value pairs
  • Data is separated by commas
  • Curly braces {} hold objects
  • Square brackets [] hold arrays
  • Strings must use double quotes
  • Numbers can be integers or floating point
  • Boolean values are true or false
  • Null values are represented as null

Example

Minified:

{"name":"John","age":30,"city":"New York"}

Formatted:

{
  "name": "John",
  "age": 30,
  "city": "New York"
}