mt6502dis is an interactive disassembler that Mark Tyler created to parse 6502 binary executable files.
It uses the GTK+ toolkit (version 1 or 2) and runs on PC's via the GNU/Linux or Windows operating systems.
mt6502dis is free software, which means you are able to freely use, modify and distribute it according to the GNU General Public License.
Note: If you want to run the Windows executable you will also need to download and install the Windows version of mtPaint.