- Extension
- .jj
- .ico
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Robert Jung
- Microsoft
- 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.
- An ICO file is an image format used to store icons for Windows programs, files, and folders. It contains two bitmaps: 1) the AND bitmap - the image mask (which determines what part of the icon is transparent) and 2) the XOR bitmap - contains the icon which is mapped onto the image mask. ICO files can be modified to create custom icons.
- MIME Type
- image/x-jj
- image/x-icon
