Hi, I have implemented some improvements to Alexander Pick's MKMTool, a desktop application for maintaining your inventory of Magic: the Gathering cards on cardmarket up to date and much more.
Here are the binaries for the latest version (0.8.2.2) compiled by me for Windows 64-bit: https://tomasjanak.github.io/MKMTool0.8.2.2.zip.
If you want to say "thank you", buy some overpriced bulk or trash MtG cards from me.