5/5 Votes: 5,698
Johann N. Löfflmann
November 16th, 2020
Windows 11 / Windows 10 / Windows 8 / Windows 7
71.76 KB

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Jarfix is a free tool that enables Java developers to easily modify the behavior of their .jar files when they do not run their programs properly.

The root cause of this issue is that a program has stolen the “.jar” association. If you have installed Java Runtime Environment, the correct program is named javaw.exe. However, on Windows, any program can steal a .jar file type. If you doubleclick on the file, your pack program will open it, while javaw runs the program.

The files that are .jar are some of the worst to deal with. From not opening them to suddenly not allowing you to modify them, .jar files can be a bit of a pain to deal with. Fortunately, there is a way to repair them using the Jarfix.

If this error occurs, then your Java application has been hijacked.

Jarfix is a Java app that resolves issues commonly encountered by developers when their Java programs fail to run properly. It does so by helping them identify the cause of the issues and resolves them quickly.

If you encounter any issues with JAR files, then download Jarfix. It will allow you to easily modify the file format and its contents, and it will also enable you to work with previously inaccessible files.

Most of the time, the EXE file is used to wrap the setup installer for Windows. However, there are some applications that are dedicated to handling other types of files, such as JAR.

How to Download JarfixFor Your Windows PC

  1. First you need to check your Computer Compatible with JarfixSystem Requirement.
  2. If It’s Compatible Click the Download button.
  3. Now automatically Redirect the Download page, Wait the 10 Second to load the download file.
  4. Then Click the “Download Now” Button. 
  5. Select the location to save the Setup file.
  6. Now Start Downloading. 
  7. After Download is completed, you can start the installation Process.

How to Install Jarfixon Windows PC

  1. After Downloading Completed, Extract the Zip file on Your PC.
  2. Open the File, and Double click the Setup file.
  3. Now you can see the Installation Application on your Screen.
  4. Follow all the instranstion.
  5. After Installation process is completed, Restart your Computer.
  6. Now Open the JarfixApplication on your Desktop screen.

Features of Jarfix

Multiple Java Class Files

A JAR is a type of package file that commonly consists of multiple Java class files. It is commonly used to distribute and share Java class files.

Java Development Kit

If you already have the Java Development Kit, then you should already have downloaded and installed it. This article will walk you through the steps of getting the JDK, including how to install it and troubleshoot any issues.

Java Runtime Environment

The root cause of this issue is that a program has stolen the association of the .jar file. It is the type of file that should be executed by Java Runtime Environment when prompted to create a new JavaScript file.

Require Manual

Jarfix is a utility that helps restore the relationship between the .jar file and the Java .exe file. It does not require manual intervention and is very lightweight.


Usually, when you install applications on your PC, they will be available in the JAR format. However, when these files are not present, you might encounter issues while running them. Fortunately, there is a simple app that can help you avoid this issue.

Windows operating systems.

Jarfix is a utility that helps recapture .jar association between Java Runtime Environment and the JavaScript program. It works seamlessly even on Windows operating systems.

effective program 

If the Java files on your system are still not opening, then you need to install the Jarfix. This is a super simple and effective program to fix Java files. Just download it and run it successfully.

zip/unzip programs 

Many zip/unzip programs prefer to open a .jar instead of a Javascript program, as it avoids Java’s overhead and the meta-information that’s stored in a .jar.

How to Uninstall Jarfixon Windows PC

  1. If you need to uninstall Jarfix, Go to the Control Panel on your PC.
  2. Open the Programs and Features file.
  3. Now You can see the List of the Application on your PC. Find the JarfixApplication and Right click, Then Click the Uninstall Button.
  4. Finally it’s Permanently Uninstalled on your Windows PC.

Disclaimer of Jarfix

Jarfixis Developed by Johann N. Löfflmann. So All the Registered company names, trademarks, product names, and logos property of thor respective owners.

Frequently Asked Questions (FAQ)

Do I need Jarfix?

For normal usage, your PC won’t have to install Java Runtime Environment. However, there are still certain applications and web pages that use the Java Runtime Environment.

Why JAR file is not opening?

If you can’t run jar files on Windows 10, then you might need to install Java Runtime Environment. There are a few ways to get started with opening JAR files.

How do I open a JAR file in Windows 10?

Right-click the file and select Open. Then, select another app to open it and install it using Java Platform SDK.

How do I open a .JAR file?

If you want to view all the non-executable jar files in a single directory, then you can do that with the aid of JAR file compatible decompression software.

Can you trust Jarfix?

Jaarfix is a safe program to use on your PC.

How do I install a jar file in Windows 10?

In order to get Java to work properly, we need to re-associate the Java jar file with the Java binary. This step will create a new path to the Java installation directory.

How do I install a JAR file on Windows?

Java is a program that is used to install various apps on Windows. To run a JAR file, you need to install Java. However, if you need a different version of Java, then download it from here.

How do I extract a JAR file in Windows?

To extract a JAR file, enter its name and type in the path containing its contents.