CLASS

Basic information about CLASS file

When there is a problem with opening files with the file extension CLASS（*.CLASS or *.class）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the CLASS file yourself.

There are 1 file types using the CLASS file extension in our database. In the further part of this page, you will find detail information about all the CLASS file with their brief description and a list of programs that support CLASS file sorted by operating systems. The table below provides useful information about the CLASS file extension. It answers questions such as:

What is the CLASS file?
How to open a CLASS file?
What programs do I need to open a CLASS file?
What programs help to create and edit a CLASS file?
How to convert CLASS files to another file format?
How to convert another files to CLASS file format?

1.Detail information about CLASS file extension: Java Class File

Software programs that will open, edit or convert CLASS files
File type	Java Class File	Category	Developer Files
Developer	Oracle	File format	Binary
Description	CLASS file is a Java Class File developed by Oracle. A CLASS file is a compiled .JAVA file created by the Java compiler. It contains bytecode, which is binary program code that is executable when run by a Java Virtual Machine (JVM). CLASS files are commonly bundled into .JAR files, which are included in the $CLASSPATH environment variable for execution.
Windows	Oracle Java Runtime Environment Eclipse IDE for Java Developers with JD-Eclipse plug-in dirtyJOE JD-GUI DJ Java Decompiler
macOS	Oracle Java Runtime Environment Eclipse IDE for Java Developers with JD-Eclipse plug-in Apple Jar Launcher JD-GUI ClassEditor
Linux	Oracle Java Runtime Environment Eclipse IDE for Java Developers with JD-Eclipse plug-in JD-GUI ClassEditor

How to convert CLASS files to another file format?

There are 1 records in our database eligible for CLASS files to another file format conversion. If you want to achieve CLASS to another files conversion, you may use the option.

CLASS to JAR

Can't open a CLASS file?

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

”Can't open this file: example.CLASS”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the CLASS extension without any issue.

Where I can download the application that support CLASS file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.

How 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.

Can I change the extension of CLASS 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/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.

What else may cause problems width open a CLASS file?

The reasons for the lack of the ability to open a CLASS file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a CLASS file. If there is still something wrong, you might want to check:

Whether the CLASS file is damaged.
Whether the CLASS file is incorrectly linked in the registry entries.
Whether the CLASS file extension has been accidentally removed from the Windows registry.
Whether the installation of an application that supports the CLASS file format is incompletely.
Whether the CLASS file is infected.
Whether the drivers of the equipment used for opening a CLASS file are up to date.
Whether your computer has enough hardware resources to open a CLASS file.

If the CLASS file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.