scan any binary file for embedded format magic bytes · png jpeg wav midi zlib gzip nsf spc vgm elf zip · runs locally
[drop file]
drop any ROM or binary file
searches for 60+ known magic byte signatures
[notice]
you supply your own files. fatcousin does not host, link to, or recommend sources for rom files, bios files, or copyrighted game data. this tool is for preservation, modding, research, and education with files you lawfully possess. all processing runs in your browser — files never leave your device.