Helm Synthesizer
Design a synth sound with visible modulation, then play it standalone or inside an audio project.
What’s included for free?
Free polyphonic synthesizer for GNU/Linux, macOS and Windows, available as a standalone program and audio plugin. Donations are optional. The maintainer README calls the release beta with outstanding bugs; check compatibility before relying on it for delivery.
Where it runs: Local install
Provider information ↗Checked 2026-10-18
Before you use it
GPL-3.0 software; redistribution and modified software must satisfy the licence's source and notice obligations. Separately obtained samples or presets have their own terms.
Provider terms can change. Check current pricing and usage rights before starting a project.