invar
· Invar is a lightweight transpiler that can translate source files to many
different programming language source code and you can interchange custom
data format between them.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window invar-1.0.14.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
