Open JJ file - The best software for opening .jj files

JJ files: what are they and how do I open them?

Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

.jj file type #1: Doodle C64 Compressed image format

Files with jj file extension could in the past be found as drawings made in Doodle program on Commodore 64.

Further details:

The jj file extension was in the past used for a special compressed image format used on Doodle program for Commodore 64.

Doodle was a popular graphics editor on that platform.

Open file with:

XnView MP

A popular utility for viewing and converting graphic files

.jj file type #2: JavaCC data

Files with jj file extension can be typically encountered as some kind of Java Compiler Compiler file created by parser generator.

Further details:

The jj file extension is mainly associated with the JavaCC (Java Compiler Compiler) a parser generator for use with Java applications.

The jj file stores various data used for internal purposes of the Java Compiler Compiler.

Open file with:

Java

Software set used to develop and run applications written in Java source code

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.jj" has the file extension "jj". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.