SynthFont - 1 and 2

SynthFont (free V.1 and paid V.2) is a program for editing and playing MIDI files using various sound source files like SoundFonts, GigaSampler files, SFZ files and more. VST instruments can also be used instead of a sound source file. A midi file is different from - for instance - an MP3 file in that the file does not contain any audio data. Instead, the file is a collection of notes and instructions for how to play them. SynthFont combines this data with the audio data in a SoundFont to produce ("render") an audio version of the song. Here are a few audio samples in MP3 format for you to  listen to.

Version of SynthFont2 and  SynthFont2x64 released November 28th, 2023, is available. Get it now!

Version 1.811 of the free SynthFont1 released June 12th, 2024, is available. Get it now!

MidiSoundSynth Version 2 - still freeware, with some restrictions!

MidiSoundSynth is a program for playing MIDI files or MIDI data from an input port, using only the best SoundFonts available on the market. The program the result of a collaboration between Alberto Galluzzo at (long recognized producer of high quality SoundFont) and SynthFont.

MidiSoundSynth has a very simple user interface, with only the features you really need, relying on the SynthFont2 synthesis engine. This is the first program on the market that can use the new proprietary SoundFont format “SFKR” (“SoundFont KompRessd”) designed and developed by SynthFont in collaboration with GoldMidiSF2. You can naturally also use standard SoundFonts in the traditional SF2 format, if you want.

This new compression algorithm is optimized for compressing sampled SoundFont audio data at 44100Hz and 16-bit. Compression is almost lossless, only noise and other irrelevant artifacts are removed. Thanks to a compressed size of about 25% compared to the original one, we have the possibility to create and distribute large SoundFonts.

One of the main features of MidiSoundSynth is the ability to choose and assign any SoundFont / Preset separately to each of the 16 MIDI channels present in the MIDI file. Additionally there are five built-in audio effects that can be assigned to each of the MIDI channels. All “MIDI arrangements or modifications” such as Tempo change, Key, Effects, Preset, etc., will be saved for later use in a file called "Arrangement", which also contains the original MIDI. MidiSoundSynth can generate audio files in various popular formats, such as WAV, MP3, MP4 and OGG.

For live playback and excellent performance, MidiSoundSynth supports low latency WASAPI technology.

MidiSoundSynth is currently available with support for five languages: English, Italian, Spanish, German and French

Read more about MidiSoundSynth:
Introduction (ENG).pdf, Introduzione (ITA).pdf, Introduccion (ESP).pdf, Einführung (GER).pdf, (French version coming any day now)

Or read the online help (in English)

Version released July 11th, 2024, is availabled. Get it now!

For more information on SoundFont packages visit our site dedicated to MidiSoundSynth here.


Viena is a FREE SoundFont editor (not to be confused with one other editor called "Vienna"). Viena can be used on any MS Windows computer independently of audio card installed (as opposed to the "Vienna" software).

Viena makes it easy to create new SoundFonts, copy Instruments and Presets between SoundFonts and change values for Generators.

Version 1.203 released August 30th 2023, is availabled. Get it now!

VSTSynthFont [3]

VSTSynthFont [3] is a plugin  based on the VST PlugIn Interface Technology by Steinberg Media Technologies GmbH). Use together with any suitable VST host. NOTE: VSTSynthFont is NOT JUST a plugin version of SynthFont but a completely different piece of software.
Available both as a 32 and 64 bit plugin.

Versions 3.600 released May 30th, 2024.  VSTSynthFont [3] is not freeware, except for when included in a Band-in-a-Box package. You can try it for 15 days.  Get it now!


SyFonOne is a Midi Port player based on SynthFont and VSTSynthFont. Hook it up to your Midi keyboard, or via a virtual midi port to your sequencer and play MIDI using SoundFonts.

Version 1.110 released November 12th, 2023, is available. Get it now!
SynthFont2 in pictures

Listen to a few samples of what you can do with SynthFont ("MIDI-to-WAV" or "MIDI-to-MP3!):

Here are some MIDI file arrangements made with SynthFont2, posted here just as examples. A range of standard SoundFonts were used. Additionally the audio has been enhanced with various basic VST effects; reverbs, equalizers, limiters, compressors and the like.
Spencer Davis Group - Gimme Some Lovin'
Spencer Davis Group - Gimme Some Lovin'
Metallica & Orchestra - Nothing Else Matters
Metallica & Orchestra - Nothing Else Matters
Bohoohoofi - Magical Mystery Tomb (for Cello)
Bohoohoofi - Magical Mystery Tomb (for Cello)
Laura Pausini - Se fue
Laura Pausini - Se fue
Idecs Hyper Groove - 33 Rock&Pop
Idecs Hyper Groove - 33 Rock&Pop
Elvis Costello - She
Elvis Costello - She