What is JSON commonly used for in web applications?

JSON, which stands for JavaScript Object Notation, is primarily used for transporting data between a server and a web application. It is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. Web applications leverage JSON extensively for sending structured data, such as user inputs, configuration settings, or any other necessary information between client-side and server-side components.

Given its simplicity and efficiency, JSON is favored for API responses and requests in web applications. It allows developers to quickly and effectively handle the serialization and deserialization of data, making it an integral part of modern web development.

While data visualization, transferring images, and encrypting data are important aspects of web applications, they do not directly relate to the primary role of JSON, which is focused specifically on data transportation.