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JSON Formatter (Viewer, Validator & Beautifier) [Free Online Tool]

This free JSON formatter and viewer web tool helps you to debug your code for errors and beautify it to make it look organized. Try now.

JSON Formatter (Viewer, Validator & Beautifier) [Free Online Tool]

JSON Formatter

JSON code responses from REST APIs are normally minified to reduce the payload size and this simple online tool helps you to format your JSON code with linebreaks and indents and make it easy to read.

JSON formatter tool offers various functionalities such as:

  • View
  • Validate
  • Beautify


A viewer is nothing but an embedded web text editor where you have to paste your code.

It has syntax highlighting and section collapsing and expanding options.


The text editor is also a code validator that will show you the errors and warnings at the line number bar of each line that has error(s) right after you paste your code.

It helps you identify the errors and fix before formatting it.


Finally, the JSON formatter tool helps you format or beautify your code to make it look nice for human eyes and increase its readability.

How to Use?

  • Paste your JSON code in the editor above.
  • Check if it has any errors and fix it.
  • Choose your indentation type.
  • Click format button on top of the editor.
  • Once it is formatted, click copy button to copy it to the clipboard.


08/06/2019 - First version of the JSON Formatter tool published.

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