Wave! free software-synthesizer by Sonic Assault

Wave! is a free software synthesizer developed by Sonic Assault. Available format(s): VST for Windows.

  • Wav file synthesizer.
  • 24 Note polyphony.
  • ADSR Envelope Generator.
  • Coarse and Fine Tuning.
  • Level Control with Output Overload Indicators.
  • Pan Control.
  • Full Automation.
  • User Assignable Automation Capability.
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Waspy LE

Waspy LE free software-synthesizer by Sound-Record

Waspy LE is a free software synthesizer developed by Sound-Record. Available format(s): VST for Windows.

Waspy LE is a sampled-based synthesizer module.


  • 60 presets.
  • Modern Sound.
  • Easy Arpeggio module.
  • ADSR.
  • Filter.
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Unicycle free software-synthesizer by Spacedad

Unicycle is a free software synthesizer developed by Spacedad. Available format(s): VST for Windows.

By Spacedad and Mbreges.

An 8-Bit Polyphonic Sample-Based Synth with 300 four-cycle waveforms.

Inspired by Niffla‘s Fourcycle Synth.

Controls include ‘drawable’ ADSR Drawbars which are connected to:

  • Amp, Pitch, Filter and Badness.
  • Double LFOs for poly-rhythmic effects can be tempo-syncable or free running.
  • LFOs can be subtle or can achieve extreme speed taking it into self-oscillation.
  • Sample Rate/Bit Reducer.
  • Low-pass Filter.
  • Decimator.

originally entered into the KVR Developer Challenge 2009.

NEW updated version 0.14 is now tuned correctly (for old projects please tune down -9 semi-tones).


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Tapeotronic free software-synthesizer by Elektrostudio

Tapeotronic is a free software synthesizer developed by Elektrostudio. Available format(s): VST for Windows.

Tapeotronic is heavily inspired by Mellotron. It has three type of sounds you can blend together: Flute, String and Chorus. 16 patches, knobs with fully automation as well as MIDI learn option.

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Synthetik free software-synthesizer by Tru-Urban

Synthetik is a free software synthesizer developed by Tru-Urban. Available format(s): VST, VST3, Audio Unit for Windows 64b, macOS.

Synthetik is a free VST and AU plugin delivering fresh inspiring sounds and FX for Hip-Hop and R&B productions including synths, bells, synth bass, brass, electric pianos, pads, strings and more.

The Synthetik VST/AU Plugin is called a “semi-synth” because it does not posses all of the traditional functions of a full synthesizer. Instead, Synthetik has really high quality sounds out of the box that can be fine-tuned and tweaked further using the LFO settings, Reverb and ADSR. Synthetik has glide control and the full range of play modes such as Mono, Poly and Legato.

Synthetik is compatible with all music software supporting VST or AU format on both Windows and Mac.

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Sonix free glitch | granulizer by JC Productionz

Sonix is a free glitch and granulizer VST plugin developed by JC Productionz. Compatible OS(s): Windows.

Sonix is a “single-stream quasi-synchronous granulator” which also features an analog filter to further manipulate the sound with a smooth low-pass, phat-pass (with some big bottom end) and high-pass formant hybrid settings.

Sonix buffers input audio and releases it in discrete grains of a specified duration, at a specified rate. Random variation can also be applied to the grain length and grain rate, and the grains amplitude can be shaped with six different envelopes.


  • Random grain variation.
  • Grain pitch control.
  • Auto pitch variation.
  • Hybrid analog filter.
  • Panning on both channels, only on stereo audio track.
  • Grain shaping envelopes.
  • Wet & dry signal control.
  • Full automation.
  • Traditional VU meter.
  • MIDI learn functionality on all controls.
  • Optional host sync for grain rate.
  • Granulators can be triggered in stereo mode or separately.
  • Both granulator channels can be operated independently.
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sg-grainbot free software-synthesizer by Synthgeek

sg-grainbot is a free software synthesizer developed by Synthgeek. Available format(s): VST for Windows 64b.

Grainbot is an experimental synth based on granular synthesis and mathematically generated noise. It’s not made for traditional bass/lead/pad type stuff (though it can do that if pressed), but it is capable of a wide range of other sounds: mechanical and engine-type sounds, rhythmic percussion sequences, random bleepery, drones, ambiences, and more. It can also process external audio.

There are two sound sources: the grain generator (which can granulate internal sound sources or an audio input), and “gen 1”, a chaotic math-based sound generator. There is also a ring modulator which uses these two generators as its inputs. You can choose between 5 different input sources for the grain generator: live audio input, a built-in analog-style oscillator, the input amplitude modulated by the oscillator, gen 1, or audio input from a file. The sound generators are processed through a filter with 5 types (lo pass, hi pass, notch, and 2 flavors of band pass) and a selectable number of stages. There is also a stereo delay effect which can sync to host tempo (or not). Various parameters (including the delay effect) can be modulated with 2 step sequencers, 3 LFOs, and a 6-stage envelope. The modulation routing is provided via matrix. Besides the modulators mentioned above, there are also matrix inputs for key tracking and velocity, and a “combiner” which uses various math formulas to combine any two mod sources in various ways.

Originally released for the 2009 KVR Developer Challenge, since updated.


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Scylla free software-synthesizer by de la Mancha

Scylla is a free software synthesizer developed by de la Mancha. Available format(s): VST for Windows.

Scylla is a VST instrument that combines sample playback with subtractive synthesis to produce a wide variety of sonic possibilities. 3 samplers and 3 different types of oscillators allow many forms of sound design, including wavetable, granular, sample looping, phase distortion, morphing and spectral synthesis. More spice is added with granulizing, ring modulation and all the (un)usual envelopes, LFOs and filter options.

Included in the package are 165 original samples, including single waveforms, tuned loops and diverse recordings. The default bank of 128 presets by brian botkiller cover leads, basses, pads and fx.

For unlimited possibilities, you can also load your own samples in Scylla and use the inbuilt custom looping, granular playback and other sampler options to make new sounds out of old ones.


  • Three layers of programmable audio sources.
  • Each layer consists of:
    • Sample player capable of loading full-length samples and custom waveforms.
    • Oscillator (Dual-OSC with cross-modulation, Morphing OSC, Spectral OSC).
  • Each sampler features:
    • Playback: Oscillate, Play-Once, Loop-Release.
    • Basic audio playback features (normalize, stereo to mono, zero-crossing).
    • Customizable Loop points.
    • Granular and Wavetable playback.
    • Loads any WAV format sample from your own library.
  • 96MB of sample content, including waveforms, samples and loops.
  • 128 presets by brian botkiller.
  • All audio sources have independent tune, volume, and pan.
  • Ring-Modulation per layer.
  • Variable stage Filter per Layer.
  • Adjustable Amp and Filter Envelopes per layer (Envelope contours can be changed).
  • Layer Assignable Granulator engine.
  • 2 layer assignable LFO effects for modulating ring-mod, cutoff (filter), and phase of one LFO.
  • Adjustable Global Amp Envelope.
  • Mix level of each audio source can be adjusted.
  • Mix level of each layer can be adjusted.
  • Master Volume.
  • Each audio source, envelope, ring-mod and filter can be switched off to save CPU.
  • MIDI CC support.
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R_Mem free glitch | granulizer by Inear Display

R_Mem is a free glitch and granulizer VST, Audio Unit plugin developed by Inear Display. Compatible OS(s): Windows 64b, macOS.

R_Mem is a granulator effect plug-in with additional ring-modulator, multimode filter and delay. What makes it special is the addition of a modulation matrix driven by 4 LFOs and of a morphing system that lets you store two states and crossfade between them. For more sound mangling possibilities, both state slots can be filled with random values.

The full version also comes with 50 royalty-free samples (24-bit / 44.1 kHz) : a selection of dark soundscapes and sound effects crafted from a mix of field recordings and digital experiments.

Features :

  • From 16 to 64 grains (10 ms to 200 ms).
  • Ring-modulator.
  • Stereo delay up to 1 second.
  • Multimode filter (lowpass, highpass, bandpass, notch).
  • Grain freeze.
  • 4 LFOs.
  • Modulation matrix.
  • Morphing between 2 states.
  • State randomizers.
  • MIDI learn.
  • MIDI program change support.
  • 50 royalty-free samples.
  • Lifetime free updates for registered users.



Pseudograins free glitch | granulizer | slicer by Subminimal

Pseudograins is a free glitch and granulizer and slicer VST plugin developed by Subminimal. Compatible OS(s): Windows.

General Features:

  • Loads WAV files.
  • Supports MIDI CCs.
  • Syncs to tempo.

Pseudograins is composed of 4 main components:

Main Loop:

  • Forward/Reverse main loop sample playback.
  • Slices – The number of divisions in the main loop. Each of these slices are represented in the sequencer.
  • ADSR [enable/disable] – sends each slice thru an envelope.
  • Speed Control [min/max] – controls the speed at which the main slices are played back. Negative values cause playback of main slices to reverse.

Sub Loop:

It works just as above with the exception that it processes individual slices generated in the main loop. Setting a high sub slice value will cause a pseudo granular effect, as you are dividing a single slice into an a much smaller looping sub slice. You can use it to maintain pitch, but timestretch the hell out of a sample. Larger sub slice values can be used to create stutters or general repetitions here and there.


The sequencer is HEX based (0-9,A-F) – you can arrange these slices in any order you want. You can juggle a drum loop, chop a vocal into prefuse 73 stutters. The sync mode and quantize will further effect how the sequencer steps thru the main loop slices.

There are 4 sequence lanes label A-D. You can trigger these live to switch sequences during playback.

[Sequencer Sync Modes]:

  1. None – As soon as a slice is played, it moves to the next position in the sequencer. It will return to the beginning once all steps in the text string are exhausted.
  2. FreeRun – You are synced to host tempo, but it plays thru the list, returning to the beginning once all steps are exhausted.
  3. Locked – GlitchBitch is synced to host tempo, the number of step played is based on the Quantize (below).
  4. Quantize – determines the number of steps when syncing to host using FreeRun/Locked.
    8 – will play 8 steps, synced to 1/8ths in the host.
    16 – will play 16 steps, synced to 1/16ths in the host.
    32 – will play 32 steps, synced to 1/32nds in the host.
    64 – will play 64 steps, synced to 1/64ths in the host.


Snapshots are used to recall all parameter settings instantly. This is how you begin making things a bit more musical, as you can switch parameters instantly to focus on different sounds.