Open JAR files with File Viewer Plus

JAR file open in File Viewer Plus 3
A Java Archive open in File Viewer Plus 3

Do you want to view and extract the contents of a Java Archive (.JAR file)?

File Viewer Plus can view the contents of JAR files and extract the files and folders to a location on your hard drive.

View and extract contents of JAR files in our easy-to-use program. Try File Viewer Plus today!

Download Now

Free 14-day trial. 86MB

What is a .JAR file?

jar file icon

JAR files are used to store executable programs or program libraries written in Java. The files can be executed on any operating system with the Java Runtime Environment (JRE) installed. JAR files are compressed archives that contain program resources, which may include CLASS files and a manifest file.

You may encounter JAR files when downloading programs that are written in the Java programming language. If you want to run a JAR program, you will need to install JRE on your computer. If you want to extract the contents in a Java archive, you can use File Viewer Plus. This capability is helpful if you are looking to view or modify the contents in a JAR archive.

Learn more about JAR files at

File Viewer Plus JAR Support


You can extract the contents of a JAR archive with File Viewer Plus and view the list of files or folders that were extracted.

About File Viewer Plus

File Viewer Plus is a universal file viewer for Windows. Why pay for many software programs and clutter your PC when you only need one? File Viewer Plus supports over 300 file types. No longer do you need to buy extra software or install shady programs to open unknown or unique file types. File Viewer Plus also enables you to edit, save, print, and quickly convert your files.

Start your 14-day fully-featured trial today.