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JSON File Extension

JavaScript Object Notation Format
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    3.7 (62 votes)

What is JSON file?

Files with the .JSON extension contain data stored in text format, using notation inspired by the subset of the JavaScript, with the UTF-8 encoding. Precise description of data in JSON format can be found in the RFC 4627 document. Among others, it is used to transfer information across a network.

Contained data may include:

  • Strings,
  • Double-precision floating-point values,
  • Logic statements
  • A table comprised of the above mentioned elements,
  • Objects.

Detailed information

Objects and tables can be nested on multiple levels. Although the syntax of JSON files is based on JavaScript, they are used within applications written in different programming languages. In JavaScript, in order to be used, it requires utilising a proper library. Data analysis regarding syntax uses commands such as parse, and eval.

Programs which support JSON file extension

Below you will find an index of software programs that can be used to open JSON files divided into 3 categories according to system platform supported. Files with JSON extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Updated: 11/27/2022

How to open file with JSON extension?

There can be multiple causes why you have problems with opening JSON files on given system. On the bright side, the most encountered issues pertaining to JavaScript Object Notation Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.

Step 1. Get the XMLSpy

Install software to open JSON file The most common reason for such problems is the lack of proper applications that supports JSON files installed on the system. This issue can be addressed by downloading and installing XMLSpy or different compatible program, such as Text editor, Windows Notepad, NotePad++ text editor. Above you will find a complete listing of programs that support JSON files, classified according to system platforms for which they are available. The safest method of downloading XMLSpy installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Verify the you have the latest version of XMLSpy

Update software that support file extension JSONIf the problems with opening JSON files still occur even after installing XMLSpy, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of XMLSpy is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. If you have an older version of XMLSpy installed, it may not support JSON format. The latest version of XMLSpy should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open JSON files to XMLSpy

If you have the latest version of XMLSpy installed and the problem persists, select it as the default program to be used to manage JSON on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Associate software with JSON file on Windows

The procedure to change the default program in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the JSON file
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • To finalize the process, select Look for another app on this PC entry and using the file explorer select the XMLSpy installation folder. Confirm by checking Always use this app to open JSON files box and clicking OK button.
Associate software with JSON file on Mac

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected JSON file open the file menu and choose Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • Finally, a This change will be applied to all files with JSON extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the JSON file is complete and free of errors

Should the problem still occur after following steps 1-3, check if the JSON file is valid. Problems with opening the file may arise due to various reasons.

Check JSON file for viruses
1. Verify that the JSON in question is not infected with a computer virus

If the JSON is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the JSON file is indeed infected follow the instructions below.

2. Verify that the JSON file’s structure is intact

Did you receive the JSON file in question from a different person? Ask him/her to send it one more time. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. If the JSON file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run XMLSpy

The operating systems may note enough free resources to run the application that support JSON files. Close all running programs and try opening the JSON file.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with JavaScript Object Notation Format file. It is possible that one of the available system or driver updates may solve the problems with JSON files affecting older versions of given software.

Conversion of a JSON file

File Conversions from JSON extension to a different format
File conversions from other format to JSON file
Do you want to help?

If you have additional information about the JSON file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on JSON file.

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