A synthesizer featuring constructive synthesis, powered by Flexion.
What is Struc?
Struc is a synthesizer plugin that unlocks the black box, letting you design evolving sound timbres at the very core. Push beyond classic waveforms to create the new classic. Say goodbye to static oscillators and build dynamic, multi-dimensional shapes.
It was created with a vision: make it accessible, make it yours — you can participate on all levels. It's free of charge — you don't pay for the synth. You only pay for presets. Everyone can be a preset creator and earn.
Flexcurves
At the heart of Struc are Flexcurves — multi-dimensional morphing waveforms that go far beyond classic oscillators. Each point on a Flexcurve can be independently modulated, even at audio rates, unlocking a vast sonic universe.
Explore the synth
Canvas Editor
Design custom interfaces for your presets using the graphical page editor. Drag and drop knobs, sliders, and more — making Struc's advanced sound-design tools accessible to everyone.
Learn about Canvas
Pay for Presets.
Powered by Flexion
Struc is built on the Flexion SDK — an open framework for building community-powered creative applications. The technology that makes community features, content sharing, and value exchange possible.
Learn moreReady to construct?
Download Struc and start exploring constructive synthesis.