JSON file format description

Many people share .json files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .json file can be edited, converted or printed with. On this page, we try to provide assistance for handling .json files.

1 filename extension(s) found in our database.

.json - JavaScript Object Notation

The JSON data files are related to Notepad. The 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.

Data files
- / -
JavaScript Object Notation related extensions:
Notepad++ Data
NASA Ames Data Exchange
Android Related Readme
Nimbus 7 SAMS APRIORI Data
Microsoft Exchange Non-Delivery Report Message
BBS Directory List

Naturally, other applications may also use the .json file extension. Even harmful programs can create .json files. Be especially cautious with .json files coming from an unknown source!

Can't open a .json file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .json file extension is often given incorrectly!

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

jsn, jso, son

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

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

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.


If you have useful information about the .json file format, then write to us!

DataTypes.net >> JSON file