JSON Formatter

Format, validate, beautify and minify JSON data instantly. Supports indentation control and error highlighting.

Indent:

Input JSON

Output

How to Use JSON Formatter

Paste Your JSON

Paste raw or minified JSON data into the input box on the left.

Choose Format

Click Format to beautify with indentation, or Minify to compress it.

Copy or Download

Copy the result to clipboard or download it as a .json file.

Why Use JSON Formatter

Instantly detect syntax errors with clear error messages

Control indentation from 2 to 4 spaces

Minify JSON to reduce file size for production

100% client-side — your data never leaves your browser

Download formatted JSON as a file

Free with no signup required

Premium Cloud Storage – 2TB Free Trial

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Frequently Asked Questions

What is JSON formatting?

JSON formatting (beautifying) adds whitespace and indentation to make compact JSON data readable. It does not change the data itself.

What does minify do?

Minification removes all unnecessary whitespace from JSON, making it smaller for use in APIs and production systems.

Is my JSON data safe?

Yes. All processing happens in your browser using JavaScript. Your JSON data is never sent to any server.

Why am I getting an 'Invalid JSON' error?

Common causes include missing quotes around keys, trailing commas, or using single quotes instead of double quotes. JSON requires double quotes for keys and string values.

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