Fluctus – Free 3-Operator FM Synth VST/CLAP (Win/Linux)

Fluctus is a streamlined 3-operator FM synthesizer by Nakst, featuring a feedback loop configuration between operators with variable brightness control. Includes essential effects like saturation, multi-mode filter, delay, and phaser. The simple, scalable interface makes it ideal for FM synthesis beginners.
Comes with 60+ factory presets and supports 2x oversampling. Compatible with Windows and Linux 64-bit systems as VST or CLAP plugin format. No DRM or registration required.