JSON Formatter

Format, beautify, minify, and validate JSON instantly. Works offline in your browser.

Input JSON

Output

Result will appear here...

What is a JSON Formatter?

A JSON Formatter is a tool that takes raw or minified JSON data and makes it human-readable by adding indentation and line breaks. It also helps you validate JSON syntax to catch errors quickly.

How to use this tool

Paste your JSON into the input box on the left.
Click Format to beautify or Minify to compress.
Click Validate to check for errors.
Click Copy to copy the output.

Example

Input:

{"name":"John","age":30,"city":"Karachi"}

Output (formatted):

{
  "name": "John",
  "age": 30,
  "city": "Karachi"
}

Privacy

Your JSON is processed entirely in your browser. Nothing is uploaded to any server.

Frequently Asked Questions

Is this JSON Formatter free?

Yes, completely free. No signup, no limits.

Is my data uploaded to a server?

No. All formatting happens in your browser using JavaScript. Your JSON never leaves your device.

What is the difference between Format and Minify?

Format adds indentation and line breaks to make JSON human-readable. Minify removes all unnecessary whitespace to make it compact.

Can this tool validate JSON?

Yes. Click Validate to check if your JSON is syntactically correct. If there's an error, you'll see the exact message.