JSON files are simple plain text files, so you can open them with any text editor. What’s more, is used for web applicationsas this file format is responsible for sending notifications to a web server from web applications, as well as for downloading the state of the web application. Also, compatible with different programming APIs, and is commonly used for AJAX web application programming. However, nowadays they are used for other purposes as there are websites or search engines that use them.įor example, Mozilla Firefox uses them to save backup copies of your bookmarks, Google+ to save profile data, and NoSQL databases use it to store unstructured data. In their beginnings they were used to store simple data structures and objects, as well as to exchange data between web servers and web applications. And it is that almost all languages contain libraries or some function that can be read and written with JSON structures. This format maps easily to data structures used by most programming languages. json which is quite similar to the XML file format, being its main alternative. It is also compact and lightweight, and can be opened with most text editors, although not all allow editing.
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