Fast validator & beautifier


JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write, and It is easy for machines to parse and generate. On this website you can find multiple JSON example, JSON formatter and beautifier to help you understand how to make a good JSON.

When exchanging data between a browser and a server, the data can only be text. JSON is text, and we can convert any JavaScript object into JSON, therefore send JSON to the server. See more information on Wikipedia.


JSON data is written as name/value pairs. A name/value pair consists of a field name (in double quotes), followed by a colon, followed by a value. See next JSON example:

{ "key":"value" }

See the entire explanation on the Syntax & Examples page.

What is the difference between JSON and XML?

Before, XML (extensible markup language) was the only choice for open data interchange. But over the years JSON appeared. Therefore JSON has become a popular alternative to XML for multiple reasons.

See the entire explanation on the JSON vs XML page.

JSON example Blog

How to Use JSON in Node.js

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AJAX and JSON guide for beginners

In this guide, I explain how to fetch data asynchronously from an external API using AJAX web technology. AJAX and JSON are one of the most important and common combinations in web development. first of all, what is AJAX? AJAX stands for Asynchronous JavaScript And XML. But… AJAX is a misleading name. It might use […]


This post covers how to use, encode and decode JSON objects when using PHP. The functions json_encode – Returns the JSON representation – link json_decode – Decodes a JSON string – link json_last_error_msg – Returns the error string of the last json_encode() or json_decode() call – link json_last_error – Returns the last error occurred – […]