JSON format

Format, beautify and validate JSON data, support syntax highlighting and error detection

Formatting settings

Indent type

Indent size

Output format

Sorting method

Validate JSON syntaxShow line numbersSyntax highlightingRemove comments

Input JSON

1

Format result

1

Features

Supports multiple outputs: formatted, minified, escaped

Real-time JSON syntax validation

Simple to use: paste, load sample, one-click format

Free: no registration, no limits

How to use the JSON formatter?

Enter or paste JSON into the left input
Choose formatting settings (indent, output format)
Click Format to view the result on the right
Copy or download the formatted JSON

FAQ

What JSON formats are supported?

Standard JSON and JSONC (JSON with comments).

Is there a maximum file size?

For the best experience, keep files under 10 MB.

Is any data stored?

No. All processing happens locally in your browser.