Flandersh Tech Tonetta Blue Semi-Modular Polyphonic Synth [FREE]

Tonetta Blue is a free semi-modular polyphonic synthesizer for Windows, offering eight voices of sound design potential. Its core sound engine pairs two oscillators, each with 19 custom waveforms, and feeds them into two analog-style filters. You also get curve and LFO modulation plus a shapeable waveshaper to sculpt the tone. The plugin is split into two panels: a clean main interface for fast tweaking and a backside modular environment for deeper modulation. On the back, you can route internal and external signal sources and destinations, use a signal splitter and mixer, a step sequencer, and modular effects. Built-in effects include convolution reverb, modular EQ, and modular delay. Tonetta Blue runs as a VST3 (64-bit) instrument on Windows, making it compatible with DAWs like FL Studio, Ableton Live, and others that host VST3. It is aimed at hobby producers who want a flexible, free synth for experimenting with semi-modular patching without spending money. Whether you are crafting leads, pads, or textures, this synth gives you plenty of routing options in a compact 34 MB package.