Cardinal
Patch modular instruments and effects in a self-contained synthesizer with bundled modules.
What’s included for free?
Free local standalone synthesizer and plugin under GPLv3 or later. Bundled modules are included, but arbitrary external modules and the VCV Rack store are not supported. Some plugin-hosting capabilities remain experimental; official macOS and Windows builds are unsigned.
Where it runs: Local install
Provider information ↗Checked 2026-10-18
Before you use it
GPL-3.0-or-later code, with separately licensed module artwork including noncommercial or custom terms. Preserve applicable notices and check artwork redistribution conditions.
Provider terms can change. Check current pricing and usage rights before starting a project.