Vital is a spectral warping wavetable synthesizer with drag'n'drop modulation workflow and animated preview of the synth's inner workings where needed. Comes with many modulation sources (including audio-rate), MPE support and FX chain.



KIA Instrument is described as 'Movement in nature has inspired us for centuries. And now, the sounds of movement in nature have inspired a new instrument that will put you into a creative state of flow' and is a music production app in the audio & music category. There are eight alternatives to KIA Instrument for Windows, Mac, Linux, BSD and Flathub. The best KIA Instrument alternative is Vital, which is both free and Open Source. Other great apps like KIA Instrument are Helm, Equations Synth, ZynAddSubFX and Odin 2.
Vital is a spectral warping wavetable synthesizer with drag'n'drop modulation workflow and animated preview of the synth's inner workings where needed. Comes with many modulation sources (including audio-rate), MPE support and FX chain.



Helm is a free, cross-platform, polyphonic synthesizer with a powerful modulation system. Helm runs on GNU/Linux, Mac, and Windows as a standalone program or LV2/VST/VST3/AU plugin.

Where mathematics meets music: a unique synthesizer plugin that puts the power of mathematical expression directly at your fingertips. Instead of selecting from preset waveforms, you write your own equations to generate completely unique sounds.



ZynAddSubFX is a fully featured open source software synthesizer capable of making a countless number of instruments, from some common heard from expensive hardware to interesting sounds that you'll boost to an amazing universe of sounds.




Odin 2 is a versatile 24-voice polyphonic synthesizer that covers about every type of synthesis out there. Odin 2 is released as open-source software.




Surge is an open source digital synthesizer originally written and sold as a commercial product by @kurasu (Claes Johanson) at Vember Audio. The synth uses subtractive hybrid synthesis and each patch contains two 'scenes' which are separate instances of the entire...




The NES VST is designed to emulate the 8-bit sounds of the Nintendo, remaining faithful to the specifications of the 2A03 chip.

Serum VST is a Wavetable Synthesizer, which pre-installed or imported Wavetables can be used to create synthesized sounds.
