development

JSON Formatter

Format, validate, and organize your JSON data.

How to format and validate JSON

  1. Paste JSON text.
  2. Format or Minify it.
  3. Read the status message or clear the field.

Formatting example

Format a one-line JSON value.

valid JSON → formatted JSON

The same data is shown with indentation.

Use cases

  • Format API data.
  • Validate JSON syntax.
  • Minify valid JSON.

Tips and limitations

  • It uses JSON.parse and JSON.stringify in the browser.
  • There is no upload, download, or copy control.
  • Invalid JSON is not corrected automatically.
  • No size limit is declared; large values can be slow.

Frequently asked questions

Does it validate JSON?

Yes, through JSON.parse.

Can it fix invalid JSON?

No.

Can it minify JSON?

Yes.