What is JSON formatting?

JSON formatting is the process of adding proper indentation, line breaks, and spacing to JSON data to make it more readable. It doesn't change the data itself, just its visual presentation.

Is this JSON formatter safe to use?

Yes, 100% safe. All processing happens directly in your browser. Your JSON data is never sent to any server or stored anywhere.

Can I validate JSON with this tool?

Yes. Click the Validate button to check if your JSON is syntactically correct. The tool will show detailed error messages if any issues are found.

JSON Formatter & Validator

Format, beautify, minify, and validate JSON data online. Supports syntax checking and custom indentation.

Indent:

Input JSON

Output

What is JSON Formatter?

JSON (JavaScript Object Notation) is a lightweight data-interchange format. This JSON formatter tool helps you format, beautify, minify, and validate JSON data. Simply paste your JSON, click Format, and get a clean, readable output. Perfect for debugging API responses, config files, and data processing.

Features

Format & beautify JSON with custom indentation (2, 4, or 8 spaces)
Minify JSON for production use
Validate JSON syntax with detailed error messages
100% client-side processing — your data never leaves your browser

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How to Use

Paste your JSON data into the input field on the left
Choose your preferred indentation (2, 4, or 8 spaces)
Click 'Format / Beautify' for readable output, or 'Minify' for compact output
Copy the result using the copy button

Common Use Cases

Debugging API responses and payloads
Formatting configuration files (package.json, tsconfig.json)
Validating JSON data before processing
Minifying JSON for production use