Rated 4.67 out of 5 based on 3 customer ratings
(3 customer reviews)


  • Clear sound quality produced by mathematically precise harmonics
  • Easy to understand – controls labeled with musical terms, not technical language
  • Built-in oscilloscope shows you the sound wave in real time
  • Full polyphony – you can play multiple notes at once
  • Velocity sensitive – harder struck notes sound louder and brighter
  • Synchronize Fluoresynth to your song’s tempo
  • Future updates to Fluoresynth are free after initial purchase
  • Runs on Windows 7, 8, 10 and Mac OSX 10.5 through 10.12+
  • Download the free demo or play Fluoresynth online
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Download the free demo to verify that your computer is compatible. You can also try this synth in your web browser.

Includes 32 and 64-bit VST files for both Windows and Mac, 32 and 64-bit AU files for Mac, and installation instructions. Fluoresynth requires a VST or AU compatible Digital Audio Workstation (DAW) to run.

Make better music faster

Musicians want to spend their time making music, not learning how to use a particular synth.

Fluoresynth allows you to play with a rich soundscape without needing a complicated interface. You’ll immediately start making music instead of figuring out controls.

Place your mouse over the sliders to see how each one changes Fluoresynth’s sound.

It’s easier than deciphering a wall of knobs.

Precise Harmonics

Fluoresynth produces an audio signal composed of a fundamental tone and 12 overtones. It produces no noise and filters all aliased frequencies.

How does Fluoresynth work?

The Fluoresynth synthesizer uses the harmonic series to create pitched musical tones. This series also determines the sounds of string, brass, and woodwind instruments.

Unlike traditional instruments, you can customize Fluoresynth’s harmonics as you play it.

Fluoresynth’s harmonic series consists of a fundamental tone and 12 overtones. The relationship between the fundamental and its overtones determines the sound’s brightness and warmth.

Mellow or Bright Timbre

Fluoresynth sounds mellower when the overtones are much quieter than the fundamental frequency.

Turning up the overtones’ amplitude brightens Fluoresynth’s timbre.

The Timbre slider controls the overtones’ amplitude.


Warm or Metallic Waveform

The waveform shape determines the distance between each overtone. You can control the waveform shape with the Waveform slider.

Dense overtones produce warmer sounds.

Spaced overtones sound metallic.


Dynamic Sounds

Changing the timbre or waveform over time can make the sound more interesting. Fluoresynth has several ways of making notes more dynamic.

Two envelopes control the Volume and Timbre amounts over the lifetime of each note.

Four low-frequency oscillators control periodic Volume and Timbre changes, plus Vibrato and Stereo Panorama effects. You can synchronize all four low-frequency oscillators to the tempo of your song.


VSTi/AUi Soft Synth Plugins

VST and AU plug-in files are available for purchase. These files are compatible with the most popular recording software and Digital Audio Workstations. Versions for both Windows and Mac.


Free online synthesizer you can play in your browser

You can play Fluoresynth in your browser right now. Works with a MIDI controller in Chrome or Opera. Works best on desktop.


Free Lifetime Version Upgrades

Current Version: 1.0

Version history

Version 1.0 – Volume controls (Master, Envelope, LFO), Timbre controls (Master, Envelope, LFO, Waveform), Vibrato, Panorama, Tempo Sync, Oscilloscope

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3 reviews for Fluoresynth

  1. Rated 4 out of 5

    Kc Daugirdas

    Nice synth!! Love the mellow wurli-rhodes sounds you can get out of it. The brighter settings have a ring-mod vibe that’s a bit more limited in its use, but still has a certain draw.

    Would love to have this in my arsenal, but $90 for what is a rather basic and limited tool is not a price point I can justify spending.

  2. Rated 5 out of 5


    Just awesome! Definitely adding Fluoresynth to my sound engineering tools. Nothing else out there like it. I feel like I just became a better producer. So easy to use and just what I needed.

  3. Rated 5 out of 5


    As a novice to the world of sound engineering, this was just what I needed to get started. Thanks for making it easy!

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