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

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

Xhip Synthesizer

Xhip Synthesizer free software-synthesizer by aciddose

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

Xhip Synthesizer allows you to produce high quality dual-oscillator polyphonic synthesizer sounds, similar to classic poly synthesizers of the late 80s. Strings, synth pads, basses, leads, organs, pianos, percussion, bells, vocals, sound effects and more are demonstrated in the factory banks also freely available for download.

Factory banks and a manual can be downloaded separately from the Xhip Synthesizer page. Please read the manual for the current version if you have not yet read it as it contains an important “getting started” chapter and lots of helpful documentation for non-obvious features.


  • Re-sizable GUI.
  • Two oscillators, filters, envelopes and LFOs.
  • Oscillator sync and X-mod (FM).
  • Both oscillator (super-saw) and voice level unison.
  • PCM (samples) as oscillator waveform with looping and anti-aliasing.
  • Ring-mod, audio-rate filter modulation and saturation.
  • Per-voice wave-shaping (distortion).
  • Sample-accurate modulation.
  • Ability to route MIDI inputs to parameters.
  • Embedded effects.
  • Detailed PDF format manual.

Xhip was featured in One-Synth-Challenge #85. OSC-85-Xhip


Xhip has an account at soundcloud with example audio clips available.

X-Jupitae Wide-Boy

X-Jupitae Wide-Boy free software-synthesizer by CK_Modules

X-Jupitae Wide-Boy is a free software synthesizer developed by CK_Modules. Available format(s): VST for Windows.

X-Jupitae Wide-Boy synthesiser features:

  • 3x Enhanced Dual voice Multi-Mode ‘Flexi’ oscillators with extended harmonics (512).
  • Dual multi-mode filters – Serial or Parallel.
  • 4x Graphic 32 stage envelopes.
  • Ribbon and XY Pad controllers.
  • Very flexible modulation options.
  • 28 note polyphony, Mono mode.
  • Interactive pattern arpeggiator.
  • Full Multi-FX section: Gate, Compressor, 5 Band Eq, Degrader, Distortion, Ensemble, Auto Panner, Stereo Image, 4v Chorus, 5 Tap Delay/Echo, True Stereo Reverb.
  • Large GUI providing quick and easy access to all Synth functions.
  • Activation Keycode can be found on the CK_Modules&VST Forum page.
Made with SynthEdit


X*ONE free software-synthesizer by Alterex

X*ONE is a free software synthesizer developed by Alterex. Available format(s): VST for Windows.

X*ONE is a virtual monophonic synthesizer with one oscillator, one modulator, and one 12dB lowpass filter. Although the design is similar to Alterex’s ViCON the sound of this module is described as “phatter”. This basic unit has some tricks up its sleeve and is one of the core parts of Alterex’s X*PAND VSTi – that will be released next year.


  • Modulator: low frequency oscillator and envelope generator (tempo synced).
  • Oscillator: saw, square waveform and manual pulse width control.
  • Filter: 12 dB lowpass filter with dedicated envelope modulator.
Made with SynthEdit

Wollo Drone

Wollo Drone free software-synthesizer by Erik Wollo

Wollo Drone is a free software synthesizer developed by Erik Wollo. Available format(s): VST for Windows.

Wollo Drone is a virtual analog synthesizer which combines analog style sounds with onboard effect processors.


  • 32 voice polyphony.
  • 2 oscillators in each voice.
  • 5 different oscillator waveforms with pulse-width and sync.
  • 4 different resonant filters.
  • LFOs with 8 different waveforms.
  • Envelopes for Osc1 & Osc2.
  • Portamento.
  • Mono Mode.
  • Flanger with build in moog filter.
  • 2 mono delays.
  • Stereo Reverb.
  • Animated keyboard for easy playing the synth with your mouse.
Made with SynthEdit


WNM-1 free software-synthesizer by KlangLabs

WNM-1 is a free software synthesizer developed by KlangLabs. Available format(s): VST for Windows.


  • Three independent modules.
  • Six oscillators on each module, first five are modulators and can be routed to other oscillators.
  • Sine, Saw, Ramp, Triangle, Pulse, w-noise and p-noise waveforms to choose from.
  • Freq, Pulse Width and Modulation depth for each oscillator.
  • ADSR envelopes for each module.
  • Multi outs.
  • Patch Bank.
  • MIDI Automation.
  • Oscillators routing.
  • Pitch tracking.
Made with SynthEdit


WhiteLightning free software-synthesizer by Uncut Plugins

WhiteLightning is a free software synthesizer developed by Uncut Plugins. Available format(s): VST for Windows.


  • 2 Unison Oscillators, 16 Voices, 7 Waveforms.
  • Sine, Saw, Ramp, Triangle, Pulse, (PWM) White Noise, Pink Noise.
  • 2 ADSR Oscillator Envelopes.
  • 1 Harmonic Oscillator 1-8 Harmonics ADSR.
  • ON/OFF Level Adj Tuning Octave +1+2+3 -1-2 Course 1-11 Semitones Fine ± 1/2 Semitone. Detune Unison Osc 3 Modes Classic, Central A, Central B, Note Hold (Mono, Poly).
  • Poly Decreases with Number of Unison Voices (32 Note Poly @ 1 Voice) (2 Note @ 16 Voice).
  • Portamento, Retrigger, Keyboard Tracking (Cut, Res, Pan) Oscillator A B C Level Adj.
  • Arpeggiator, 6 Modes Arp Hold 4 Octave Range.
  • 3 SV Filters 12-24db Low Pass, Hi Pass, Band Pass, Band Reject (Notch).
  • 2 HAHDSR VCF Envelopes 13 Envelope Contours Time(Ratio) (Restart or Pickup) Modes of Operation.
  • 2 LFOs Sync to Host BPM 1/8-64 Straight, Dotted, Triplet.
  • 6 Waveforms, Retrigger Sine, Ramp Up, Ramp Down, Triangle, Pulse, S & H.
  • 2 Random Generators (2-64 Cycles), Pitch Track, Smooth.
  • 2 HAHDSR Modulation Envelopes, 13 Envelope Contours Time (Ratio).
  • 4 Mod Sources LFO 1&2 RND 1&2 , 15 Mod Destinations.
  • Effects: Distortion, Chorus/Flanger, Delay 2 Modes, Reverb, Auto Pan, Stereo Width.
Made with SynthEdit


Wave free software-synthesizer by synthANDware

Wave is a free software synthesizer developed by synthANDware. Available format(s): VST for Windows, macOS.

Wave is a easy to use two oscillator subtractive synthesizer.


  • Plugin is x64, copy WaveSynthPlug.vst to your 64-bit plugin directory.
  • Some sample sounds: Copy WaveSynthDatabase.xml to directory /Users/myusername/Library/.


  • Plugin is x64, copy WaveSynthPlug.dll to your 64-bit plugin directory.
  • Some sample sounds: Copy WaveSynthDatabase.xml to directory %appdata%.
  • (Example target: C:UsersmyusernameAppDataRoamingWaveSynthDatabase.xml).

VS-1 Oscilloscope

VS-1 Oscilloscope free software-synthesizer by BK SynthLab

VS-1 Oscilloscope is a free software synthesizer developed by BK SynthLab. Available format(s): VST for Windows.


  • Stereo synthesizer.
  • Mono/polyphonic.
  • 3 Oscillators.
  • 2 Filters:
    • Filter Stages is a pin, and allows selection of from 1 to 8 stages.
    • 2 band pass types:
      1. BP – constant skirt gain, peak gain = Q.
      2. BP” – constant 0 dB peak gain.
    • Gain Compensation option for LP, HP and BP1 filter types.
    • Individual Frequency, Resonance, Level, Pan, Keytrack controls for each filter.
  • 4 ADSR envelopes with synchronization of initial impulses.
  • 4 LFOs.
  • 4×16 step gate.
  • Effect block with phaser, delay, eq, unison.
Made with SynthEdit