Creakbox

Creakbox free software-synthesizer by Bioroid

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

Creakbox Bassline is a 303 like mono synth with a built in sequencer.

Features:

  • 1 oscillator (Square/Saw).
  • Resonant filter.
  • Envelope mode & Decay.
  • Accent.
  • Slide(Glide).
  • Step sequencer with a 5 octave range (Can be set to a BPM (40 – 300) or to Sync with your sequencer).

http://www.bioroid.com/vst/

Cosmo Girl II

Cosmo Girl II free software-synthesizer by Elogoxa

Cosmo Girl II is a free software synthesizer developed by Elogoxa. Available format(s): VST for Windows.

New version of the old Cosmodelia’s synth of the same name. With a fresh GUI, 64 presets, automation of all parameters and also denormalization filter.

  • 3 Voices Polyphony.
  • 1 Standard Oscillator plus 1 LFO, each one with 7 selectable waveforms, and both controlled by a single VCA.
  • Several filtering options, with control over pitch, modulation and resonance.
  • Crusher and Echo units built in.
  • Includes 64 Factory Presets.
  • Fully automatable via MIDI Standard Controls.
Made with SynthEdit

http://www.uv.es/~ruizcan/p_vst.htm

Cooly

Cooly free software-synthesizer by PQN Audio

Cooly is a free software synthesizer developed by PQN Audio. Available format(s): VST for Windows.

Cooly combines a classic analog style oscillator with a SoundFont oscillator to produce cool pads and more.

Features:

  • Osc1 has 7 waveforms (sin, saw, ramp, triangle, pulse, white noise et pink noise) and is connected to a 4-pole resonant low-pass filter. The cutoff frequency can be modulated by an LFO.
  • The filter has a dedicated envelope (ADSR).
  • Osc2 has 6 waveforms (attack, brass, organ, string, analog, perc).
  • The 2 oscillators share the same amplitude envelope (ADSR) but you can adjust the volume of each oscillator separately.
Made with SynthEdit

http://pquenin.free.fr/pqnaudio/

Code Red Free

Code Red Free free channel-strip | console-emulator by Shattered Glass Audio

Code Red Free is a free channel strip and console emulator VST, VST3, Audio Unit, AAX plugin developed by Shattered Glass Audio. Compatible OS(s): Windows 64b, macOS.

Code Red Free is inspired by a classic, all tube, British console form the late 60s. The original console was known for its EQ, bold and punchy character, and the warmth it imparted. The Beatles recorded most of their material using this, and other versions of this console. Easily recognized overdriven sound of the Beatles’ Revolution was created by chaining two preamps from this console.

Features:

  • Accurately modeled original EQ with “Classic” and “Pop” modes.
  • Additional EQ options in addition to the original EQ.
  • High fidelity model of the original preamp based on the full circuit simulation.
  • Automatic 4x oversampling.
  • Stereo processing mode with linked as well as separate Left and Right channel EQ and controls.
  • Selectable Mono processing mode for increased efficiency when processing mono signal.
  • Mid-Side processing mode.
  • Dry-Wet mixing.

http://www.shatteredglassaudio.com

CM-303

CM-303 free software-synthesizer by Computer Music

CM-303 is a free software synthesizer developed by Computer Music. Available format(s): VST for Windows, macOS.

  • TB303 alike.
  • CM303 uses the same engine as the Muon Tau Bassline Mk2 but lacks the assignable MIDI controllers and “Accent” features and has a different GUI.
  • Developed by Muon Software

http://www.computermusic.co.uk/

Cloud

Cloud free software-synthesizer by Dario Lupo / Daze

Cloud is a free software synthesizer developed by Dario Lupo / Daze. Available format(s): VST for Windows.

Cloud is a 3-Morphing-oscillator synthesizer with a bitcrusher for each OSC, a Filter, 4 LFOs and the Automorph section where you have 4 LFOs to morph waveforms automatically, a Stereo Enhancer, Delay and Reverb effects.

Made with SynthMaker

http://www.dazesounds.com/

Clock Jitter

ZynAddSubFX free software-synthesizer by paulnasca 2

Clock Jitter is a free clock VST plugin developed by Voxengo. Compatible OS(s): Windows.

This VST plug-in was designed to be a “mastering” plug-in. It emulates an effect that is common on some old ADC (analog-to-digital converter) devices. This effect is called ‘clock jitter’ which arises when internal ADC’s wordclock is not precise. Actually, it is unknown whether this plug-in is usable for sound production or not, but in some situations this ‘clock jitter’ noise can be applied rather productively.

https://www.voxengo.com/

Chimera

Chimera free software-synthesizer by Majken

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

Chimera is a noise-driven synth. All the sounds coming from Chimera are based on white noise filtered into notes using resonant bandpass filters. The result is organic sounds ranging from warm pads to atmospheres with elements of wind and water.

Features:

  • Unique synthesis method.
  • More than 50 included presets.
  • Built in soft clipper distortion and 2-tap stereo delay.
  • Wide range of modulation options with three envelopes and three LFOs.
  • Cross-modulation with free routing.
  • Freely assignable MIDI CC controls.
Made with SynthEdit

http://www.majken.se/

Charlatan

Charlatan free software-synthesizer by BlauKraut Engineering

Charlatan is a free software synthesizer developed by BlauKraut Engineering. Available format(s): VST for Windows.

Charlatan, a freeware polyphonic, subtractive virtual analog (VA) synth with focus on sound quality and easy usability. It comes with a flexible, yet not overwhelming feature set which encourages artists to start tweaking instead of just relying on presets. Inspite of it’s simplicity, Charlatan’s architecture is flexible enough to create both classic sounds and rather experimental noises. While making no compromise about sound quality, the sound engine has been highly optimized for efficient CPU usage making Charlatan well suited as a “bread and butter” synth even in projects with a large number of plugin instances.

Key Features

  • 2 oscillators with shape modulation.
  • Oscillator hard synchronization and ring modulation.
  • Unison mode with upto 7 voices and stereo spread.
  • Stereo noise generator.
  • 2 ADSR envelope generators.
  • LFO with host tempo synchronization.
  • 3 filter types modeled after classic analog hardware: 4-pole (24 db/oct) and 2-pole (12 db/oct) lowpass, bandpass.
  • 3 voice modes: Monophonic, Monophonic Legato and 8-voice Polyphonic.
  • Ultra-low CPU usage.

http://www.blaukraut.info/

CetoneSynth2

CetoneSynth2 free software-synthesizer by Neotec

CetoneSynth2 is a free software synthesizer developed by Neotec. Available format(s): VST for Windows.

CetoneSynth2 is a polyphonic virtual analogue synthesizer.

Specifications:

  • 3 Oscillators with saw, pulse, triangle and noise waveforms, AM, sync and switchable keytracking.
  • 4 Oscillator modes: normal, add, mul and super.
  • Resonant 12/24dB multimode filters.
  • 3 Envelopes (amplifier and modulation).
  • 2 LFOs with saw, pulse, triangle and noise waveforms, BPM sync, retrigger, sample and hold, delay and keytrack.
  • 8 note arpeggiator with BPM sync.
  • 6 Modulation slots.
  • Chaos button generates random patches.
  • Audio input may be used as modulation source.
  • Most parameters can be controlled by MIDI CCs.
  • Configurable for various CPU architectures (x86, SSE, SSE2).

http://neotec.argle.de/cetone/