Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .json

Below, you can find answers to the following questions:

  • What is the .json file?
  • Which program can create the .json file?
  • Where can you find a description of the .json format?
  • What can convert .json files to a different format?
  • Which MIME-type is associated with the .json extension?

1 extension(s) and 0 alias(es) in our database

JavaScript Object Notation .json file icon

JavaScript Object Notation

JSON file is a JavaScript Object Notation. JSON is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. Mozilla Firefox 3 bookmark-backups are stored in JSON format.
Category: Data files
Application: Notepad
Program name: notepad.exe
Mime-type: application/json
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
CoffeeScript Object Notation

Other types of files may also use the .json file extension. If you have helpful information about .json extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

JetSoft Shield Now Data
SBStudio II Song
JISO Compressed PSP ISO Image

The .json filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

jsn (8), son (3), jso (1)

Can't open a .json file?

If you want to open a .json file on your computer, you just need to have the appropriate program installed. If the .json association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.json

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012, Windows 7, Windows 8, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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