When storing data, the data has to be a certain format, and regardless of where you choose to store it, text is always one of the legal formats. JSON makes it possible to store JavaScript objects as text.

If you load this JSON in your JavaScript program as a string, you can parse it into a normal object and then access the data inside it using the same dot/bracket notation we looked at in the JavaScript object basics article.

In this tutorial, you will learn about JSON and how JavaScript is used with JSON with the help of examples.

July 11, 2025 - The JSON string is received as part of an API response (e.g., via an HTTP GET request). The client parses this string back into a JavaScript object using JSON.parse().

August 26, 2021 - This tutorial provides an introduction to working with JSON in JavaScript. Some general use cases of JSON include: storing data, generating data from user in…

January 13, 2026 - To parse a JSON string into a JavaScript object, use JSON.parse().

If the recipient of this message ... without producing a number value first (resulting in loss of precision) by using JSON.rawJSON() to precisely specify what the JSON source text should be....

This tutorial will help you understand ... Java, etc. This tutorial has been designed to help beginners understand the basic functionality of JavaScript Object Notation (JSON) to develop the data interchange format....

June 2, 2022 - In this cloud tutorial, we explore how you can use JSON in your JavaScript programs, including storing, sharing, and transferring data. Introduction There are many ways that JSON can be used in JavaScript.

Values can be strings, numbers, booleans, arrays, or other JSON objects. You can convert a JavaScript object to JSON using JSON.stringify().

You will learn how to convert JavaScript objects into JSON later in this tutorial.

Explore JSON and how JavaScript Objects can be used to access data within JSON data format and output to your web page

Let's suppose we've received the following JSON-encoded string from a web server: ... Now, we can simply use the JavaScript JSON.parse() method to convert this JSON string into a JavaScript object and access individual values using the dot notation (.), like this:

One of the most common uses for JSON is when using an API, both in requests and responses. It is much more compact than other standards and allows for easy consumption in web browsers as JavaScript can easily parse JSON strings, only requiring JSON.parse() to start using it.

As we can see in the output, the above program converted the JavaScript object to a JSON object. We can use the JavaScript built-in function JSON.stringify() to convert a JavaScript object to a JSON string.

The data is only JSON when it is in a string format. When it is converted to a JavaScript variable, it becomes a JavaScript object.

JSON supports plain objects, arrays, strings, numbers, booleans, and null. JavaScript provides methods JSON.stringify to serialize into JSON and JSON.parse to read from JSON.

May 19, 2025 - Learn how to use JSON in JavaScript to store and exchange data, including parsing and stringifying techniques for real-world web development.

November 29, 2021 - We have seen how to format JSON data inside a JSON file. Alternatively, we can use JSON data as a string value and assign it to a variable. As JSON is a text-based format, it is possible to handle as a string in most programming languages. Let's take an example to understand how we can do it in JavaScript.

Parse the data with JSON.parse(), and the data becomes a JavaScript object.