JSON Formatter
Format, validate and minify JSON data with a simple browser-based JSON tool.
What Is JSON?
JSON stands for JavaScript Object Notation. It is a text-based format used to represent structured data. JSON is widely used in web applications, APIs, configuration files and data exchange.
What Does a JSON Formatter Do?
A JSON Formatter takes valid JSON and adds indentation and line breaks so that the structure is easier to read. This can make nested objects and arrays much easier to inspect.
How to Format JSON
- Paste your JSON into the input box.
- Choose the indentation style you prefer.
- Click Format JSON.
- Review the formatted result.
- Use Copy Result to copy the formatted JSON.
What Is JSON Minification?
JSON minification removes unnecessary whitespace, indentation and line breaks while keeping the JSON structure unchanged. Minified JSON can be useful when compact output is preferred.
What Happens When JSON Is Invalid?
The formatter uses the browser's JSON parser to check the input. If the parser cannot understand the data, the tool displays an error message rather than generating a formatted result.
Is My JSON Uploaded to a Server?
The formatting, validation and minification performed by this page happen directly in your browser. The tool does not need to send the JSON input to a remote server.
JSON Formatter FAQ
Common questions about formatting JSON online.
Yes. The JSON Formatter is free to use.
Yes. Select Validate JSON to check whether the entered text can be parsed as valid JSON.
Yes. The Minify JSON option removes unnecessary whitespace while preserving the JSON data.
Yes. The page is designed to work on smartphones, tablets and desktop browsers.