Convert jj to png

What is the difference between .jj and .png?

Description: The JJ file type, associated with Doodle C64 (Compressed), is a compressed image format used specifically for storing digital artwork created on the Commodore 64, a popular home computer from the 1980s. This format is designed to compress the graphical data to save storage space while maintaining the integrity of the original artwork. It was commonly used by artists and computer enthusiasts to share and distribute pixel art and graphical designs made on the Commodore 64. The JJ file format is specific to the Commodore 64 platform and requires specialized software or emulators to open and view the images on modern computers.; A PNG file is an image file stored in the Portable Network Graphic (PNG) format. It contains a bitmap of indexed colors and uses lossless compression, similar to a .GIF file but without copyright limitations. PNG files are commonly used to store graphics for web images.