Free JSON Formatter — Format and Validate JSON Online

JSON

Result

How to use

Paste JSON, click Format (pretty) or Minify. Invalid JSON shows an error.

Why use

Validate and format JSON for APIs or config.

Frequently asked questions

What does the formatter do?

It parses your JSON and re-outputs it with consistent indentation (pretty-print) or as a single line (minify). Invalid JSON returns an error with position info.

Is my JSON stored?

No. We only parse and format for the request; nothing is saved.

Can it fix invalid JSON?

We show where the error is. We don’t auto-fix (e.g. trailing commas or unquoted keys) to avoid changing meaning.