JSON Formatter

Format, validate and minify JSON in one place.

The JSON Formatter makes structured data easier to read, validate and compress. Paste any JSON payload to format it with consistent indentation, check syntax, sort object keys, browse it as a collapsible tree, or produce a minified version for storage and transmission.

Mode

json.sortKeys

View

Input

Output

Please enter some input.

How to use

Paste or type JSON into the input field.
Choose Format, Validate or Minify and toggle sorting or the tree view.
Review the output, check the error position if validation fails, and copy or download the result.

Frequently asked questions

Does the JSON stay in my browser?

Yes. Formatting, validation and minification run locally, so your JSON is not uploaded.

Which JSON versions are supported?

The tool accepts standard JSON objects, arrays and scalar values.

Where is the error location shown?

Invalid JSON reports the line and column where parsing failed.

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