If you're using a Mac or prefer a different interface, offers similar functionality. DoubleY's tool helps you manage custom libraries on Kontakt Player 3.5 or higher, working with guitars, pianos, and other instruments. The "DoubleY - Custom Kontakt Library Creator 2.1" is another frequently mentioned tool in this ecosystem.
: Unlike the free Player, the full version of Kontakt allows users to build their own instruments and deeply edit samples.
— KLC also assists with adding library artwork to make your browser look polished and professional.