How do I format JSON online?

Paste your JSON into the formatter, and it will automatically format and beautify it with proper indentation and syntax highlighting. The tool validates JSON syntax and shows errors if the JSON is invalid.

What is JSON formatting?

JSON formatting (or beautifying) adds proper indentation, line breaks, and spacing to make JSON data human-readable. It converts minified JSON into a structured, easy-to-read format without changing the data.

Can this tool validate JSON?

Yes, our JSON formatter automatically validates JSON syntax. If your JSON is invalid, it will show an error message indicating what's wrong. Valid JSON will be formatted with syntax highlighting.

How do I minify JSON?

Click the 'Minify' button to remove all whitespace and line breaks from your JSON. Minified JSON is compact and ideal for production use, reducing file size and bandwidth.

JSON Formatter - Format, Validate & Beautify JSON Online Free

JSON Input

JSON Formatter

Format, beautify, and validate JSON data online. Our JSON formatter adds proper indentation and syntax highlighting to make JSON easy to read and debug.

Features

Format: Beautify JSON with proper indentation
Validate: Check JSON syntax for errors
Minify: Remove whitespace for production
Syntax Highlighting: Color-coded keys, values, and types
Statistics: View size, line count, and validation status
Copy: One-click copy to clipboard

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write, and easy for machines to parse and generate. It's widely used in web APIs, configuration files, and data storage.

JSON Syntax Rules

Data is in name/value pairs
Data is separated by commas
Curly braces {} hold objects
Square brackets [] hold arrays
Keys must be strings in double quotes
Values can be: string, number, boolean, null, object, or array

Common Use Cases

Debugging API responses
Formatting configuration files
Validating JSON before deployment
Converting minified JSON to readable format
Learning JSON structure
Preparing JSON for documentation

Format vs Minify

Format (Beautify): Adds indentation and line breaks for readability. Use during development and debugging.

Minify: Removes all whitespace to reduce file size. Use in production to save bandwidth.

📋 JSON Formatter