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.JSON File Extension

File TypeJavaScript Object Notation File

4.1 (680 Votes)
CategoryWeb Files


This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

What is a JSON file?

A JSON file is a file that stores simple data structures and objects. It contains data in a standard data interchange format which is lightweight, text-based, and human-readable. JSON files were originally based on a subset of JavaScript, but is considered a language-independent format, being supported by many different programming APIs.

More Information

While many applications use JSON for data interchange, they may not actually save ".json" files on the hard drive since the data interchange occurs between Internet-connected computers. However, some applications do enable users to save ".json" files. One example is Google+, which uses JSON files for saving Profile data. After logging in, you can choose the "Data liberation" page and select "Download your Profile data."

JSON is commonly used in Ajax Web application programming. It is becoming increasingly popular as an alternative to XML.

NOTE: Mozilla Firefox saves bookmark backups using JSON files. The files are saved to the Firefox user profile directory within a folder called bookmarkbackups. You can also make manual backups of Firefox bookmarks and import them into a different copy of Firefox. To import, open the bookmark Library, click the import/export button in the top bar, choose Restore → Choose File..., and then select your JSON backup file.

Open and view .JSON files with File Viewer Plus.
Programs that open JSON files
File Viewer Plus
Altova XMLSpy
Microsoft Notepad
Microsoft WordPad
Other text editor
Mozilla Firefox
Apple TextEdit
Bare Bones TextWrangler
Other text editor
Mozilla Firefox
GNU Emacs
Other text editor
Mozilla Firefox
Updated 7/20/2016

About the file extension json

Our goal is to help you understand what a file with a *.json suffix is and how to open it.

The JavaScript Object Notation file type, file format description, and Mac, Windows, and Linux programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not been able to verify.

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