MultiBootUSB is released under General Public Licence (GPL). Anybody can use, modify and redistribute if they wish. It is also build using the best of open source softwares from the world. Be it Python or Syslinux you get the best. Source code is always available to users to view.
GUI toolkit for MultiBootUSB has been carefully chosen as PyQt. PyQt is a Qt binding for python. MultiBootUSB makes use of QtDesigner, a GUI form designer, for user interface so that we can code more. Qt is one of the most widely used GUI toolkits available in the field today and looks native on all platforms.
Syslinux is used the default boot loader for making your USB Flash Drive bootable. We looked at all options out there and decided to use Syslinux as many distros use Syslinux/Isolinux in their ISOs. MultiBootUSB ships with different verion of Syslinux to reduce incompatibility and installs the exact distro-specific Syslinux version.