JSON Formatter & Validator

Format, validate, and minify JSON data instantly with our free online tool

Enter JSON to format, validate, or minify

Indent Size (for formatting)

Actions:

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 for APIs, configuration files, and data storage across web applications.

Our JSON formatter helps you beautify messy JSON, validate syntax errors, and minify JSON for production use - all in one convenient tool.

How to Use This Tool

Paste Your JSON

Copy and paste your JSON data into the input field. It can be formatted or minified.

Choose Action

Select Format to beautify, Minify to compress, or Validate to check for errors.

Set Indent Size

Choose your preferred indentation: 2 spaces, 4 spaces, or tab (8 spaces).

Copy Result

View the formatted output and copy it to your clipboard with one click.

Key Features

Format & Beautify

Transform minified or messy JSON into clean, readable format with proper indentation

Validate JSON

Instantly detect syntax errors and get clear error messages to fix your JSON

Minify JSON

Compress JSON by removing whitespace and newlines for production use

JSON Statistics

View file size, line count, and character count for your JSON data