How to open KOA files

Did your computer fail to open a KOA file? We explain what KOA files are and recommend software that we know can open or convert your files.

What is a KOA file?

KOA files are Koala Paint (C64) bitmap files, which you can read more about below.

The KOA file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a KOA opener may not be able to open all kinds of KOA files. In this case, though, we only know of one specific use.

Koala Paint (C64) bitmap

Through our analysis of KOA files, we know that one use of the format is Koala Paint (C64) bitmap. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

KOA file openers, viewers, etc.

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

ZViewerZViewerUser submitted
KAOSSILATOR PRO EditorKAOSSILATOR PRO EditorUser submitted
QuiviQuiviUser submitted
Techsoft PixEditTechsoft PixEditUser submitted
My ViewPadMy ViewPadUser submitted
Nero PhotoSnap Viewer EssentialsNero PhotoSnap Viewer EssentialsUser submitted
ReaViewerReaViewerUser submitted
We have not verified any programs that we know for certain can work with KOA-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with KOA-files. If you know one, please use the Suggest link below and tell us about it!