FluidSynth is a real-time software synthesizer based on the SoundFont 2 specifications and has reached widespread distribution.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- BSD
ZynAddSubFX is described as 'Fully featured open source software synthesizer capable of making a countless number of instruments, from some common heard from expensive hardware to interesting sounds that you'll boost to an amazing universe of sounds' and is an app in the audio & music category. There are more than 25 alternatives to ZynAddSubFX for a variety of platforms, including Windows, Mac, Linux, BSD and iPad apps. The best ZynAddSubFX alternative is Vital, which is both free and Open Source. Other great apps like ZynAddSubFX are Helm, Odin 2, Dexed and Surge Synthesizer.
FluidSynth is a real-time software synthesizer based on the SoundFont 2 specifications and has reached widespread distribution.
Yoshimi is a software synthesizer for Linux based on the 2.4.0 release of ZynAddSubFX, written by Nasca Octavian Paul. Yoshimi delivers the same synth capabilities, along with very good Jack and Alsa midi/audio functionality.




TAL-NoiseMaker is an improved version of TAL-Elek7ro and has a completely new synth engine and a lot of improvements in sound and usability. The synth also includes a small effect section with a reverb, chorus and a simple bit crusher effect.

ABSYNTH 5 is an exceptional synthesizer with unique sonic potential and more than 2,100 preset sounds. Its speciality is a limitless spectrum of unusual, evolving sounds created using the powerful, hybrid synthesis architecture and sophisticated modulation and effect system -...

PHASEX is an experimental software synthesizer for use with Linux/ALSA/JACK. The name comes partially from its experimental method of using phase offset modulation, where each oscillator can have its phase offset between right and left channels modulated by an LFO or another...

This is a program for stretching the audio. It is suitable only for extreme sound stretching of the audio (like 50x) and for applying special effects by "spectral smoothing" the sounds. It can transform any sound/music to a texture.






Oxe FM Synth is a touch-sensitive, realtime polyphonic FM-based music synthesizer created and maintained by Oxe Software.



Synth1 is a software synthesizer modeled on the Clavia Nord Lead 2 Red Synth. It combines the common sound synthesis method of Subtractive & FM synthesis.



synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx.

A virtual analog synthesizer, Tunefish v4 was developed as a smaller replacement of Tunefish v3 with roughly the same power - some might argue it's even more powerful. It was also ported over to Linux and MacOS and was given a new polished UI.



PaulStretch slows down existing audio; ZynAddSubFX is a synthesizer. Totally different types of software.