Toolbox for developers / JSON Formatter & Validator

JSON Formatter & Validator

This tool allows you to beautify, validate, pretty and minify JSON code.

User guide

  • Copy and paste or directly type in the editor above. You can also upload a file containing the json code to validate (Click on the "Browse" button).
  • Click on the "Beautify" button to format JSON code. It allows to easily read JSON string by human beings.
  • Click on the "Minify" button to minify JSON code. This minifier removes whitespace and new line.
  • Click on "Validate" button to validate JSON code. In case of error, it indicates where the problem is located.
  • Click on "Download" button to download the editor content.

JSON parser online

This JSON parser online tool was created to help debug JSON. JSON strings are not often very readable for a human (without line breaks), especially if they are bulky. This tool allows to easily read and debug JSON by human.

This tool is also a JSON checker: Check JSON online in a few clicks.

You can also minify your JSON.

With this tool, it is fast and simple, just fill in the editor, and click on the button of the desired action. There is no need for installation or registration!

If you want compare REST API Responses, you can use our Online JSON diff tool.

About JSON

JSON (JavaScript Object Notation) is an open-standard format for storing and transporting data, it was derived from JavaScript object notation syntax. JSON is often used for asynchronous browser–server communication.

JSON became a very common format, many programming languages include code to generate and parse JSON-format data.

You can report a bug or give feedback by adding a comment (below) or by clicking "Contact us" link (at the top right hand corner of the page).


The tools are provided "as is", without warranty of any kind, either express or implied.