D81 File - opening and understanding

Did your computer fail to open a D81 file? We explain what they are used for and recommend software that we know can open or otherwise handle your .D81 files.

What is a D81 file?

A .D81 file is a Commodore 1581 Diskette Dump file. A D81 file contains a byte-for-byte dump of a diskette formatted for use with the Commodore 64 home computer equipped with a Commodore 1581 disk drive. Each disk can hold a total of 819200 bytes.

These dump files contain an exact copy of the disk contents and can be used in emulators that let you run Commodore 64 games and programs on your modern PC. This format is similar to D64, which contains a dump of a diskette formatted for the Commodore 1541 disk drive.

How to open D81 files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension D81 for different purposes. We have identified 1 D81 opener for Windows that is compatible with this specific type of D81 file.

Programs that open these files

VICEVICEVerified
We have not yet verified any programs for Mac that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!
We have not yet verified any web services that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!

Suggest another file format using extension D81

While we know of one file format using the .D81 file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .D81 file.

Various viewers for this file format

These apps are known to open certain types of D81 files. Remember, different programs may use D81 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

C64 ForeverC64 ForeverUser submitted
GAEB-KonverterGAEB-KonverterUser submitted
GAEB-Online ViewerGAEB-Online ViewerUser submitted
RetroPlatformRetroPlatformUser submitted
GAEB-ViewerGAEB-ViewerUser submitted
GaebWriterGaebWriterUser submitted
gaeb AVAgaeb AVAUser submitted
D83-KonverterD83-KonverterUser submitted
DirMaster v2.2.009/StyleDirMaster v2.2.009/StyleUser submitted
ventasoft AVA-signventasoft AVA-signUser submitted
We have not verified any software that we know for certain will work with D81-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with D81-files. If you know one, please use the 'Suggest a program' link below and tell us about it!