The Photosynthesis Engine is a free interface for Kontakt to make creating your own Kontakt instruments easy. Import samples, then manipulate them with sound shaping, filters, 13 effects, and a rhythm section featuring a step sequencer, filter sequencer, 2 filter LFOs, and gain/pan/pitch LFOs. Watch the engine walkthrough for a full feature overview, and take a look at the sound creation tutorial to learn how to start creating your own sounds.
If you would like to use the engine to develop a library, send me a message and I'll get you started.
The engine is open source and free to redistribute. You can share/sell any instruments you create with it, as long as all samples you used are entirely your creation.
Warning: Sharing/selling instruments with third party samples is against the law. Do not do it!
Requires the full version of Kontakt 5.5+
(Photosynthesis Engine will not run in the free Kontakt Player)