Free JSON Formatter & Validator

What Is JSON?

JSON stands for JavaScript Object Notation. It is a lightweight text format commonly used to store and exchange structured data between applications and web services.

What Does a JSON Formatter Do?

A JSON formatter takes compact or difficult-to-read JSON and adds indentation and line breaks so the structure is easier to understand.

What Does JSON Validation Mean?

JSON validation checks whether the provided text follows the syntax rules required for valid JSON. If the JSON contains a syntax error, this tool reports that the input is not valid.

Format vs. Minify JSON

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

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

How to Use the JSON Formatter

Paste your JSON into the input box and choose "Format JSON" to make it easier to read. Choose "Minify JSON" to remove unnecessary spaces and line breaks.

You can also click "Validate" to check whether the JSON syntax is valid.

Is My JSON Data Uploaded?

This tool processes the JSON directly in your browser. The page does not need to upload your JSON to a remote server for formatting or validation.

Frequently Asked Questions