Everyday KitFast tools in your browser

Beautify, minify, and validate JSON for configs, API responses, and app settings. Errors stay on the page so you can fix typos before copying into code.

JSON formatter

Paste JSON, then beautify or minify. Validation errors stay on this page.

How to use JSON formatter

  1. Paste JSON in the input box.
  2. Click beautify for indented output or minify for a single line.
  3. Fix any validation error shown in red.
  4. Copy the formatted JSON into your project.

Example: The JSON {"ok":true} beautifies to a multi-line object with indentation.

Frequently asked questions

What is the difference between beautify and minify?
Beautify adds indentation and line breaks for readability, while minify removes whitespace to produce the smallest possible single-line output.
Why do I get a validation error?
Common causes are trailing commas, single quotes instead of double quotes, or missing brackets. The error message points to the problem.

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