SID free software-synthesizer by SocaLabs

SID is a free software synthesizer developed by SocaLabs. Available format(s): VST, Audio Unit for Windows 64b, macOS.

  • Emulates MOS Technology SID of the Commodore 64.
  • 3 Oscillators.
  • 4 wave shapes: Square, Triangle, Saw, Noise.
  • ADSR per oscillator.
  • Ring modulation (replaces triangle output) and hard sync between oscillators.
  • HP, BP, LP filters.


SFX8 free rompler by SocaLabs

SFX8 is a free rompler VST, Audio Unit plugin developed by SocaLabs. Compatible OS(s): Windows 64b, macOS.

  • Retro style sound effects – coin, laser, explosion, power up, jump & more.
  • Inspired by the sounds of the sounds of NES.
  • 32 parameters per sounds effect.
  • 9 waves: square, saw, sine, noise, triangle, pink, tan, whistle, breaker.
  • 16 pads.
  • Mutate existing sounds.
  • Based on SFXR & BFXR. Audio engine is open source.


PAPU free software-synthesizer by SocaLabs

PAPU is a free software synthesizer developed by SocaLabs. Available format(s): VST, Audio Unit for Windows 64b, macOS.

  • Emulates hardware of Nintendo Gameboy.
  • 2 Square wave channels.
  • Sweeps on first square wave channel.
  • 1 Noise channel.
  • Waveform display.
  • Stereo output.

NanoMod 7: 8-bit synths

NanoMod 7: 8-bit synths free soundbank by Rhythmic Robot

NanoMod 7: 8-bit synths virtual instrument is a free sound bank for Kontakt, by Rhythmic Robot.

NanoMod 8-bit is a simple but versatile Kontakt synthesiser based on vintage 8-bit polysynths, featuring an “intelligent” interface that allows the user to adjust multiple parameters with single controls. It is offered as part of the KVR Developers’ Challenge 2014.

NanoMod 8-bit brings the simplicity of Rhythmic Robot‘s NanoMod interface to bear on the crusty, gritty, aliased sounds of classic 8-bit synthesisers of the early to mid 80s. Using source waves taken from vintage Ensoniq hardware and a front-end incorporating convolved Wasp and MS20 filters, this NanoMod is aimed squarely at big, powerful polysynth sounds – everything from warm and evolving pads to screaming leads.

The wave blend dial to the left of the panel shifts between the two raw waveforms at the heart of the NanoMod, both of which were sampled from vintage 8-bit Ensoniq synths. One is a rough, aggressive sawtooth-based tone, with two detuned saws added to a pulse-width modulated pulse wave for a shifting and thick sound with a lot of harmonics for the filters to bite into. This is intended as a very versatile “classic” synth sound, though with the inevitable artefacts and distortions of the 8-bit resolution clearly evident. The second wave is a shiny, breathy, noise-rich digital wave very typical of early 80s digital synthesisers, which lends sheen and aliasing noise to the mix. Intermediate positions on the dial blend these two waves, yielding a wide range of starting points for all kinds of synth tones.

These starting points can then be sculpted with the set of “intelligent” controls, which adjust multiple parameters behind the scenes. The Grit Filter pushes the raw sound through convolved vintage filters sampled from Wasp and MS20 circuitry, while the Smooth Filter allows for sweeps and more precise adjustments. Glow and Shimmer add movement to the sound, while Warmth adds analogue-style instability. The Glitch button musically randomises all the controls for instant inspiration and patch generation, with its intelligent algorithm biasing it towards musically useful results. Any patch you create can of course be saved.

NanoMods are all about simplicity and fun, and NanoMod 8-bit continues the tradition. It is capable of generating thousands of unique patches with a handful of intelligent controls, and best of all, it’s absolutely free.

NanoMod 8-bit requires Kontakt v4.2.3 or later to run. It’s compatible with all versions of Kontakt 5. More information is at Rhythmic Robot.



ZynAddSubFX free software-synthesizer by paulnasca 2

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

Kruudster is a free Hybrid Synthesizer VST instrument plug-in for Windows with drawable low resolution waveforms.


  • 3 Oscillators.
  • 3 LFOs.
  • A Randomizer key triggered or rate controlled.
  • 3 ADSRs.
  • A Filter with 9 different modes, keytracking and filter mix.
  • 2 Modulatable Delays of which one can be Tuned for Physical Modelling.
  • 1 Arpeggiator.
  • 1 Step modulator including a key triggered mode.
  • PWM for all waveforms.
  • Waveform Morphing and FM.
  • 384 presets.

Listen to Demo song

{See video at top of page}

Made with SynthEdit