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/ JSON Formatter

JSON Input

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JSON Formatter

Format, minify, and validate JSON data

■ 01

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format. It's easy for humans to read and write, and easy for machines to parse and generate. This tool helps you format (prettify), minify, and validat…

■ 02

How does it work?

Formatting vs Minifying Formatting (prettifying) makes JSON more readable by adding indentation and line breaks. Minifying removes all unnecessary whitespace to reduce file size. Both operations validate the JSON syntax…

■ 03

Sample Cases

Covers Simple object, Array, and Nested structure so you can compare common inputs and outputs quickly.

/ Code

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/ Integration

Source code from the selected tool, shown here alongside the live version on the right.

/ Source Code

TypeScript

typescript

// No external dependencies needed - uses built-in JSON methods

interface ValidationResult {
  valid: boolean;
  error?: string;
  formatted?: string;
  minified?: string;
}

function validateAndFormatJson(jsonString: string): ValidationResult {