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sfizz
What it is
sfizz is a sample-based musical synthesizer built around the SFZ instrument format. It can play existing SFZ instrument libraries or support the creation of personal instruments. The synthesizer supports SFZv1 and partial SFZv2 compatibility. It is available as VST3i, Audio Unit and LV2 plugins, as well as a standalone JACK client. Instrument makers can use hot reload to change a custom instrument and test the edits without interacting manually with the software. Its streaming system loads sounds as needed and reclaims memory when sounds are no longer in use. Downloads include Linux packages, 32-bit and 64-bit Windows installers, and a universal macOS package for Intel and Apple Silicon. Developers can integrate the engine into other programs through C and C++ API bindings; it accepts an SFZ file and MIDI-type events and renders audio through callback calls. The project requires no financial return for use, with optional donations. The repository was archived on June 21, 2026 and is read-only.
For and against
For
- Works with existing SFZ instrument libraries.
- Available as VST3i, Audio Unit and LV2 plugins.
- Hot reload supports instrument editing.
- Streaming loads sounds on demand and reclaims unused memory.
- Free to use; donations are optional.
Against
- SFZv2 compatibility is partial.
- Linux file selection may do nothing without zenity.
- The repository is archived and read-only.
The verdict
sfizz combines SFZ playback and instrument creation with plugin, standalone and developer-library options. Its partial SFZv2 compatibility and archived repository are important limitations to weigh.
Who it suits
sfizz suits musicians working with SFZ libraries and instrument makers who want hot reload for edits. Developers can also use its C and C++ bindings to integrate the engine into their programs.
Plans and prices
sfizz
No financial return required for use · optional donations
Read 3 Oct 2026 · github.com
On the record
- Compatibility limit
- The maker describes SFZv2 compatibility as partial, with the objective of improving compatibility over time.sfz.tools · read 3 Oct 2026
- Developer API
- The engine accepts an SFZ file and MIDI-type events, then renders audio through successive callback calls.sfz.tools · read 3 Oct 2026
- Downloads
- The download page lists Linux packages, Windows 32-bit and 64-bit installers, and a universal macOS package for Intel and Apple Silicon.sfz.tools · read 3 Oct 2026
- Funding
- The project is hobbyist-driven and accepts optional donations through Open Collective.github.com · read 3 Oct 2026
- Host integrations
- The project says sfizz can be used in an LV2 host such as Carla or Ardour.github.com · read 3 Oct 2026
- Instrument design
- Hot reload lets instrument makers edit a custom instrument and test changes without manually interacting with the software.sfz.tools · read 3 Oct 2026
- Instrument libraries
- It can use existing SFZ instrument libraries or let users create personal instruments.sfz.tools · read 3 Oct 2026
- Integrations
- The project says sfizz can be used within LV2 hosts such as Carla or Ardour, or integrated as a library in another program using its C and C++ API bindings.github.com · read 3 Oct 2026
- Library integration
- Developers can integrate the sfizz library into their own programs using its C and C++ API bindings.github.com · read 3 Oct 2026
- License and cost
- The project says no financial return is required to use sfizz and describes source archives as available under a free software license.github.com · read 3 Oct 2026
- Limits
- The maker describes sfizz as partially compatible with SFZv2, with compatibility intended to improve over releases.sfz.tools · read 3 Oct 2026
- Linux downloads
- Linux packages are offered for a wide variety of distributions.sfz.tools · read 3 Oct 2026
- macOS downloads
- The universal macOS package supports 64-bit Intel and Apple Silicon.sfz.tools · read 3 Oct 2026
- Memory use
- Its streaming system loads sounds on demand and dynamically reclaims memory for sounds no longer in use.sfz.tools · read 3 Oct 2026
- Platform limitation
- The FAQ says the Linux plugin file requester depends on the zenity package; without it, selecting an SFZ or Scala file may do nothing.sfz.tools · read 3 Oct 2026
- Plugin formats
- The synthesizer is available as VST3i, Audio Unit and LV2 workstation plugins.sfz.tools · read 3 Oct 2026
- Plugins and standalone
- The synthesizer is available as VST3i, Audio Unit, and LV2 plugins, and as a standalone JACK client.sfz.tools · read 3 Oct 2026
- Product
- sfizz is a sample-based musical synthesizer built around the SFZ instrument format.sfz.tools · read 3 Oct 2026
