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UBJSON file extension

The table below provides useful information about the .ubjson file extension. It answers questions such as:

  • What is the .ubjson file?
  • What program do I need to open a .ubjson file?
  • How can the .ubjson file be opened, edited or printed?
  • How can I convert .ubjson files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

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

✅ Universal Binary JSON Data

UBJ file is a Universal Binary JSON Data. Universal Binary JSON is a binary JSON format, specifically optimized for compact file size and better performance while keeping the semantics as simple as the text-based JSON format.
Category: Data files
Application: UBJ Libraries
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
UBJ aliases:
UBJ related links:
UBJ related extensions:
Binary JSON Data

Other types of files may also use the .ubjson file extension.

🚫 The .ubjson file extension is often given incorrectly!

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


Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Binary JSON Data

🔴 Can't open a .ubjson 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .ubjson file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .ubjson file extension, write to us!

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