JSON Formatter

Format, validate, and minify your JSON data. Debug structures, fix syntax errors, and optimize for production.

What is JSON Formatter?

A JSON Formatter (or JSON Beautifier) is a tool that transforms raw, minified, or disorganized JSON data into a readable, structured format. It adds proper indentation, newlines, and spacing to make the data easy for humans to read and debug.

Key Features

• Format/Beautify: Converts raw JSON strings into a structured tree view with customizable indentation (2 spaces, 4 spaces, tabs).
• Validate: Checks your JSON for syntax errors and provides helpful error messages pointing to the issue.
• Minify: Compresses JSON by removing all unnecessary whitespace and newlines, reducing file size for production use.

JSON Syntax Rules

JSON (JavaScript Object Notation) is strict about syntax. Common mistakes include:

• Using single quotes ' instead of double quotes " for keys and strings.
• Trailing commas after the last item in an array or object (not allowed in standard JSON).
• Missing quotes around property keys.

Safe & Secure

This tool runs entirely in your browser. Your JSON data is processed locally via JavaScript and is never sent to any external server. You can safely format sensitive configuration files or data without privacy concerns.