JSON Formatter

Format, pretty-print, and validate JSON in your browser.

Input data is processed in your browser
Data is never sent to a server

Tool

0 chars

or drag & drop a file

What is JSON Formatter?

JSON Formatter pretty-prints compact single-line JSON into a readable indented format, and can also minify JSON by removing all whitespace. It also validates JSON syntax as you format.

How to Use

  1. Paste JSON text into the input field.
  2. Click "Format" to pretty-print with indentation.
  3. Click "Minify" to remove all whitespace.
  4. Click "Copy Result" to copy to clipboard.

FAQ

Is this tool free?

Yes, it is completely free.

What happens if I enter invalid JSON?

A parse error message is displayed. Use the error details to correct your input.

Can it handle large JSON files?

It depends on your browser's memory, but typical JSON files are handled without issue.