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FabFilter Twin 3ZynAddSubFX
Paid

Paid plug-in with a 30-day trial.

 Freemium

Source code is free; the Zyn-Fusion binary release is pay what you want from $45.

Windows, macOS Windows, macOS, Linux
  • Drag-and-drop modulation of almost any parameter
  • Searchable, taggable preset browser
  • Three synthesis engines including PAD synthesis
  • Wide choice of filters and free-form envelopes
  • Paid after the 30-day trial
  • Needs a host DAW to run
  • Ready-made Zyn-Fusion binaries are paid
  • Deep parameter set takes time to learn
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.