Converters

JSON Formatter

Format, indent, or minify JSON with syntax validation and clear error messages.

About the JSON Formatter

Minified JSON from an API response is a single unreadable line. Finding the one field you need in 40 KB of it is guesswork.

Paste it here to pretty-print with proper indentation, or minify formatted JSON back down for production. Invalid input is reported with a clear parse error.

How to use the JSON Formatter

  1. Paste your JSON into the input field.
  2. Choose format to indent it, or minify to strip all optional whitespace.
  3. If parsing fails, read the error position — the problem is almost always just before it: a trailing comma or a single quote.
  4. Copy the result.

Frequently asked questions