FluidSynth/fluidsynth

Health v2 · maintenance only

Adoption not part of the score

2474 stars · 332 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

FluidSynth is a real-time software synthesizer based on the SoundFont 2 (and 3) specifications, with support for DLS and MIDI file playback. It ships as a shared C library with a powerful API plus a command-line shell, and is embedded in many GUI frontends, mobile apps, and embedded systems.

Use cases

• play midi files with soundfonts from the command line
• embed a soundfont synthesizer in my app
• convert midi to audio using sf2 soundfonts
• real-time midi synthesis in a music application
• render midi to wav on linux
• add soundfont playback to an android or ios app

When to choose

• you need a mature, cross-platform SoundFont 2/3 synthesizer with a C API
• you want to play or render MIDI files with high-quality instrument soundfonts
• you need a lightweight synth for embedded or mobile systems

When to avoid

• you need a graphical synthesizer interface out of the box (use a frontend like QSynth)
• you need hardware MIDI device emulation or non-SoundFont synthesis engines like FM synthesis

Facets

library · maturity stable

audio-processing sdk cli media cross-platform developer-tools windows cross-platform cli embedded soundfont midi software-synthesizer wavetable-synthesis midi-playback c-library audio linux macos android ios

Member repositories

For agents

markdown · JSON · MCP: product_card(name="FluidSynth/fluidsynth")