Synth1 Free Software Synthesizer VST by Daichi Lab

Synth1 is an extremely popular free software synthesizer modelled after the Clavia Nord Lead 2, developed by Daichi Laboratory. Available in VST and Audio Unit for Windows and macOS

This is the most downloaded softsynth in the world.

  • 2 Oscillators, FM modulation, ring modulation, sync, modulation envelope.
  • 2 LFOs.
  • 4 types of filters, distortion.
  • Arpeggiator
  • Tempo delay, stereo chorus/flanger.
  • Legato mode, portamento.
  • 16 notes polyphony.

128 presets are included.
Optimized for light CPU load using SSE instructions, etc.
Find various free presets on

Basic 64

Basic 64 free synthesizer 8 bit emulation

Basic 64 is a 8 bit emulation software synthesizer developed by De la Mancha. Available in VST for Windows.

It is a lo-fi synthesizer based on the “SID chip” with some extras tuning, to deliver a 8-bit retro game sound, gritty noises or just plain oddness.


  • 16, 8 or 6 bit sound quality.
  • 3 oscs, each with their own ADSR envelope.
  • Oscillators can be sync’d and ring modulated by each other.
  • Pitch envelope modulation.
  • Pitch wobble option, for subtle instability.
  • 2 tempo-sync LFO’s to modulate pitch, cut-off and pulse width.
  • LFO’s have attack/release curves.
  • Tempo-sync arpegiator.
  • Flexible routing to state variable filter (LP, HP & BP).
  • Envelopes can be reset or continuous at retrigger.
  • Monophonic or polyphonic option.
  • Midi learn / midi CC support.
  • 128 presets by sinkmusic & WhiskeyPriest.

Komplete Start

Komplete Start Free Production Suite

Komplete Start is the free version of the famous Native Instrument’s production suite Komplete. It includes various high quality virtual instruments, synthesizers and effect plugins.

Komplete free version is a curated selection of hight quality sampled instruments, software synthesizers, effect plugins, utilities, loops and samples for the no brainer price of… nothing at all!

  • Over 2,000 studio-quality sounds
  • 16 pro-grade synths and sampled instruments, effects, loops, and samples


Horus Free Software Synthesizer

Horus is a free polyphonic software synthesizer developed by B Serrano. Available in VST for Windows.

Horus is a beautifully designed polyphonic soft synth and string machine. It is well fitted for ambient pads and drones.


  • 4 oscillators: 4′, 8′, 16′, 32′
  • 64 voices polyphonic.
  • Static formant filter.
  • LP filter.
  • 1 LFO (sine)
  • Stereo delay, phaser, chorus & auto-wah.
  • Full MIDI learn.

Zvenigorod – Toy USSR Piano

Zvenigorod - Toy USSR Piano free soundbank by Strix Instruments

Zvenigorod – Toy USSR Piano virtual instrument is a free toy and piano and mallet sound bank for Kontakt, by Strix Instruments.

A small USSR piano with a unique sound that resembles a xylophone. The sound of this instrument has no equal in the atmosphere.

Use it in the melody or in the background of your tracks.

Model Year 1969


  1. 1 Toy Piano.
  2. 150+ samples.
  3. 11 presets.


ZynAddSubFX free software-synthesizer by paulnasca

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


  • Realtime, Polyphonic, Multi-timbral synthesizer.
  • Microtonal capabilities with any scale, any number of notes per octave (up to 127) and keymapping.
  • 3 synthesizer engines:
    1. ADsynth” or “ADnote” is a complex engine which makes sounds by adding a number of voices. Each one has filters, envelopes, LFOs, morphing, modulation (Ring Modulation, Phase Modulation, the modulators can have any shape), resonance, etc. Each voice includes a very powerful waveform generator with up to 128 sine/nonsine harmonics. This engine includes antialiasing.
    2. “SUBsynth” or “SUBnote” is a simpler engine which allows you to make sounds by subtraction of harmonics of sounds from white noise.
    3. “PADsynth” or “PADnote”) makes beautiful pads and other instruments.
  • Instruments can be organized in kits, which allows you to make drum kits or layered (mixed) instruments; this makes it possible to use more than one instrument for a single part. It is possible to choose what items from the kit should be processed by the Part’s effects.
  • Effects: Reverb, Echo, Chorus/Flange, Phaser, AlienWah (a kind of vocal morpher), Distortion (Waveshaping), EQ, DynamicFilter.
  • The effects can behave as System Effects or as Insert Effects; this allows you to use many effects at the same time. You can put any insert effect on any part (or more insert effects to same parts, if you like) or you can put the insert effect to Master output. Also, you can have instrument’s effect (that is saved with the instrument).
  • Filters up to 60dB/octave (or more); filters can be analogue (LPF,HPF, BPF,etc.), formant (advanced formant filters) and state variable (SVF).
  • Envelopes can have ADSR (or ASR, etc.) modes or can be free modes (with any shape).
  • Many settings have a “randomness” option; this produces a very pleasant effect (like analogue synths or natural instruments that can’t produces exactly same sound twice).
  • Intuitive and easy to use User Interface.
  • MIDI support (supports many controllers) and (if you want) JACK support.
  • Virtual Keyboard.
  • It is free, licensed under version 2 of the GNU General Public License.

ZUB Bass

ZUB Bass free soundbank by IRMG Audio

ZUB Bass virtual instrument is a free bass sound bank for Kontakt, by IRMG Audio.

Imagine using a product that is not suffering from an “Identity Crisis”. Zub Bass is a purpose built, Kontakt 5.6 Sub Bass patch and sample library that was created by a musician currently living off his art.

The beauty of Zub Bass is its ease of use and its uncompromising quality. Rather then fatten the Libary with unusable patches for marketing purposes, Zub Bass has 15 “no corner cut” patches. Every patch has ADSR knobs built in the GUI and an additional ZS or Zub Slide Knob (portamento slide) built into the main interface. Being a Kontakt Instrument, all the knobs can be automated if you choose.

The only way to provide the best quality bass was to spend hours over every sample and to create many of them. ZUB Bass currently ships with over 560 44k, 24-bit samples with competitively priced expansions coming in the future. Every sample is EQ’d, lightly compressed, tuned and limited to you the best possible product.

Your music will sound fuller without becoming cloudy, and harder hitting without biting. Your welcome. Try ZUB Bass today.


Zoyd free software-synthesizer by u-he

Zoyd is a free software synthesizer developed by u-he. Available format(s): Audio Unit for macOS.


  • 2 Osc + Noise / 2 Filter / 2 Waveshaper / 3 ADSR / 2 LFO / ModMatrix / 80+ parameters.
  • Oscillators with up to 2048 harmonics for rich sound. No audible aliasing though, unless you want it.
  • 7 filter types incl. _true_ vowel morphing, usual suspects and exotic ones.
  • Semi-modular routing incl. ringmodulation-like effect.
  • Nice Presets.
  • Rude, unique sound. Sometimes silky and smooth, though…
  • Modulartrinsic audio hazard.


Zourna free rompler by Safwan Matni

Zourna is a free rompler VST plugin developed by Safwan Matni. Compatible OS(s): Windows.

Zourna produces the sound of the Zourna. It features a quarter tone control for ease of use with middle eastern scales.

Made with SynthEdit

Zombie Killah

Zombie Killah free software-synthesizer by Sonic Entropy

Zombie Killah is a free software synthesizer developed by Sonic Entropy. Available format(s): VST for Windows.

Zombie Killah 2 is a lead synth for use in Drum’n’Bass, Breakbeat, Dubstep and Jungle music.

Main Features:

  • 2 detuned oscillators.
  • 1 sub bass oscillator.
  • Easy and quick modulation controls.
  • One-Knob Adjustable Frequency Modulation.
  • One-Knob Adjustable Amplitude Modulation.
  • Double-Knob Adjustable Pulse Width Modulation.
  • Vibrato and Tremolo.
  • 3-way filtering.
  • Host-synced BPM LFO Speeds.
  • All parameters automatable, but an assignable MIDI CC for LFO Speed is available if needed.
  • Chorus effect for stereo widening.
  • 10 Factory Presets to get you started.
  • No distortion, filters, delay or reverb on master output for crystal clear signal.
Made with SynthMaker