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JSON Formatter

Format, validate, minify, copy and download JSON data online. Fast, free and easy to use.

JSON Formatter

Use our free online JSON Formatter to format, validate and minify JSON data. Paste your JSON into the editor and instantly convert difficult-to-read JSON into clean, properly indented and easy-to-read code.

The tool runs directly in your browser and does not require an API key or account.

What Is a JSON Formatter?

A JSON Formatter is a tool that takes JSON data and adds proper indentation and line breaks to make the structure easier to read.

Minified JSON can be difficult to inspect because everything may appear on a single line. Formatting the JSON makes objects, arrays, keys and values much easier to understand.

How to Format JSON

  1. Paste your JSON into the input box.
  2. Select your preferred indentation.
  3. Click Format JSON.
  4. The formatted JSON will appear in the output box.
  5. Click Copy JSON to copy it.
  6. You can also download the formatted JSON as a .json file.

How to Validate JSON

Paste your JSON into the input area and click Validate.

The tool uses the browser’s JSON parser to check whether the data follows valid JSON syntax. If there is a syntax problem, the tool displays an error message when the browser provides a character position.

What Is JSON Minification?

JSON minification removes unnecessary spaces, indentation and line breaks from JSON data.

Minified JSON is useful when you want a compact representation of JSON for transmission or storage.

For example, formatted JSON:

 
{
  "name": "John",
  "age": 30
}
 

Minified JSON:

 
{"name":"John","age":30}
 

JSON Formatter vs JSON Minifier

A JSON formatter makes JSON easier for humans to read by adding indentation and line breaks.

A JSON minifier removes unnecessary whitespace to make JSON more compact.

Both operations preserve the underlying JSON data.

❓ FAQ

What is a JSON Formatter?

A JSON Formatter is an online tool that formats JSON data with indentation and line breaks so it is easier to read.

Is this JSON Formatter free?

Yes. The tool is free to use and does not require registration.

Can I validate JSON online?

Yes. Paste your JSON and click Validate to check whether it contains valid JSON syntax.

Can I minify JSON?

Yes. Click Minify JSON to remove unnecessary whitespace from valid JSON.

Can I download formatted JSON?

Yes. After formatting your JSON, click Download JSON to save it as a .json file.

Does the JSON Formatter require an API?

No. The tool works directly in your browser and does not require an API key.

Is my JSON uploaded to a server?

This implementation processes the JSON in the browser using JavaScript. It does not send the entered JSON to an external API.

What indentation options are available?

The tool supports 2 spaces, 4 spaces and Tab indentation.

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