Legitimate workflow:
If you already own Kontakt FULL but want easier library packaging, buy or Kontakt GUI Maker . These are one-time purchases, safe from malware, and come with customer support.
, where developers often share tools for library management and creation [1, 2]. Native Instruments Creator Tools: For a modern and supported approach, use the official Creator Tools
The "identity card" for a library [2].
Your new custom library should now appear in the side pane with its custom artwork. A Note on Safety and Legality
KLC generates the required files (like the .nicnt file), after which you can use the "Add Library" function within Kontakt to view it in your browser. Advanced Alternatives: Native Instruments Creator Tools