size 8.8 MB

Essence is a 3 oscillators subtractive polyphonic synthesizer.

• 3 Multi-Voice Oscillators (1 to 8 voices).
• 1 Noise Oscillator.
• 1 Sub Oscillator.
• Filter (LowPass, BandPass and Highpass modes).
• Filter Envelope.
• Amp Envelope.
• 2 Mod Envelopes.
• 1 LFO.
• Distortion.
• Stereo.

ronanfed.rf.gd/

RonanFed_Essence  ( 8 MB )

VST

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Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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size 2.5 MB

Luxon is a 2 oscillators analog synthesizer.

Oscillators are mixed into an amplifier and filter envelope, features 3 types of stereo pitch modulation, vibrato, chorus, and phase modulation. Modulation is tempo-synced, and the mod wheel controls a filter LFO.

Click the “expand” button to open polyphony controls.

Presets can be saved/loaded via the preset browser.

synthiv.ivysirena.com/

LuxonV1  ( 2.5 MB )

VST

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Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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size 80 MB  / 200 MB  / 99 MB

Surge XT is a subtractive hybrid synthesizer.

Each patch contain 2 scenes which are separate instances of the entire synthesis engine (except effects) that can be used to create layered or split patches. Quick category-based patch browser with textual search and favorites. 2779 patches, 614 wavetables.

Oscillators:

• 3 oscillators per scene, with 12 versatile oscillator algorithms: Classic, Modern, Wavetable, Window, Sine, FM2, FM3, String, Twist, Alias, S&H Noise and Audio Input.
• Classic oscillator is a morphable pulse/saw/dual saw oscillator with a sub-oscillator and hard sync.
• Modern oscillator is a mixable saw/pulse/triangle oscillator with an optional sub-oscillator mode for triangle (which can also change to sine or square) and hard sync.
• FM2/FM3 oscillators consist of a carrier and 2 or 3 modulators and various options.
• String oscillator uses two filtered waveguides to emulate plucked or bowed string sounds.
• Twist oscillator is based on a very famous Eurorack macro oscillator, and it offers a myriad of synthesis options in a very simple and quick way.
• Most algorithms (except FM2, FM3, Twist and Audio Input) offer up to 16-voice unison at the oscillator level.
• Oscillator FM in 3 different configurations and ring modulation between oscillators 1-2 and 2-3.
• Most oscillator algorithms (except FM2, FM3, Sine and Alias) are strictly band-limited, yet still cover the entire audible spectrum, delivering a clear, punchy and clean sound.
• Noise generator with variable spectrum (available directly in the oscillator mixer).

Filter Block:

• Two filter units in 8 different configurations.
• Feedback loop available in 7 of those configurations.
• Available filter algorithms: Lowpass (12 and 24 dB/oct, each with 3 variations), Legacy Ladder Lowpass (6-24 dB/oct), Vintage Ladder Lowpass (2 variations, each with and without gain compensation), Highpass (12 and 24 dB/oct, each with 3 variations), Bandpass (12 and 24 dB/oct, each with 3 variations), Notch (12 and 24 dB/oct, each with 2 variations), Allpass (3 variations), Comb (positive and negative), S&H.
• Open-source additions to our filter algorithms include: K35 and Diode Ladder filter types from Odin 2 synthesizer, 12 and 24 dB/oct multimode filters from OB-Xd, and weird but fascinating Cutoff Warp, Resonance Warp and Tri-Pole filters by Jatin Chowdhury!
• Filters can self-oscillate (with excitation) and respond amazingly fast to cutoff frequency changes.
• Waveshaper (43 shapes).

Modulation:

• 12 LFO units available, 6 are per voice and 6 are global for the whole scene.
• DAHDSR envelope generators on every LFO.
• LFO shapes consist of 7 deformable LFO waveforms, step sequencer, a fully-fledged multi-segment envelope generator (MSEG) with various curves and up to 128 nodes, and last but not the least – a formula modulator which utilizes Lua scripting language to provide completely custom modulator output.
• Voice LFOs allow envelope retriggering in step sequencer mode.
• Extremely fast and flexible modulation routing. Almost every continuous parameter can be modulated.

surge-synthesizer.github.io/

surge-xt-win32-setup  ( 80 MB )

surge-xt-win64-setup  ( 80 MB )

surge-xt-macOS  ( 200 MB )

surge-xt-linux-x64  ( 99 MB )

VST

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Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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size 6 MB  / 17 MB

Sawrizor Lite is an all-round wavetable / saw synthesizer that combines 2 high quality saw oscillators.

By mixing different generators for each oscillator, resulting in a matrix of recorded and hand made audio material of the last decades and unique new saw combinations.

Both units have voice unison features with detune, mix and other sound fattening abilities. The sub oscillator adds punch and more character to the sound. Chorus, delay and reverb effects enrich the sound with depth.

Sawrizor is aliasing free where necessary and allows up to 8x oversampling for high SNRs. Analogue sounding resonance/damp filters and an EQ complete the clearness of the digital synthesizer !

• Double aliasing free wavetable synthesizer with unison and sub oscillator.
• Famous high quality saw sounds of the last decades and new creations.
• Resonance damping filter.
• FX section with chorus, delay, reverb and equalizer.
• Freely resizable GUI from very small up to Ultra-HD & 5K Retina.
• Auto off feature.
• Theme support.

www.sugaraudio.com/

Sawrizor  ( 6 MB )

Sawrizor.dmg  ( 17 MB )

VST

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Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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size 0.4 MB

E-Flex III is a 2 oscillators analog synthesizer.

http://www.gtgsynths.com/

E-Flex3  ( 0.7 MB )

VST

We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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size 3 MB

Vectomorph allows the exploration of synthesis using vector oscillators.

This oscillator waveform is made up from 4 lines where each line is described by a level (affecting rate of change) and a point in time for the line to end. The start and end point of each cycle is zero so this needs 4 levels but only 3 time-points, since the end time of the cycle is the same as the start of the next cycle.

The fiendishly clever Martin Vicanek designed the oscillator which uses parabola oscillators and varies the amplitude and phase of each to produce linear sections. This method allows for further variations of the curviness of the lines by controlling the relative amplitudes of the parabola waves. The curviness subtly affects the higher harmonic content. The oscillators produce a clean sound due to employing anti-aliasing techniques.

In addition, a sawtooth wave can be added to increase the amplitude of higher harmonics. A noise source is provided (3 types) and a state variable filter.
The parameters that control the wave shape, noise level and filter settings can be modulated in real-time, and in the Vectomorph this is realised by shifting between 2 sets of controls. The shifting produces true morphing of the wave shape between the controls’ settings and can be achieved manually, with an LFO, or a multi-stage envelope generator, or any combination of these 3 sources.

There are 2 identical generators provided and each can be tuned individually to further increase the range of possibilities.

flowstoners.com/quilcom

Quilcom-Vectomorph_Win32  ( 3 MB )

VST

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size 3.7 MB  / 5.6 MB

VST

We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

freevstplugins.net

size 0.82 MB

EVM Incubus is a 6 oscillators multiwave synthesizer.

Incubus produces a stunning example of a modern virtual synthesizer. Capable of a vast range of sounds and incorporating the EVM Multiwave module for wide stereo effects the Incubus will generate strings, pads, lead synths and fat 6 note unison bass synths with ease.

• 6 Oscillators Polyphonic + 6 Oscillator Unison mode.
• 3 Sub oscillators in split transposition mode. Mono or Poly.
• EVM Multiwave technology for a wide stereo spread.
• Waves: Sine, Pulse+Pulse width, Ramp, Triangle and Noise.
• Individual filter for each Osc with Phase variable contour frequency response.
• 4 Stage ADSR with Filter and Osc pitch response.
• Filter Keyboard tracking.
• Ultra fat 6 note Unison mode with individual Osc detuning.
• Built in Digital Delay line.
• Complex modulation with 2 LFO’s and multiple destinations.
• MIDI chanel 1-16 or All.
• Selectable pitch bend range for realtime pitch wheel control.

EVM-Incubus  ( 0.82 MB )

VST

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size 1.42 MB

Microwave Oven is a 3 oscillators arpeggiator synth.

https://theodosynthsarchive.wordpress.com/

MicroWaveOven  ( 1.42 MB )

VST

We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

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size 0.84 MB

Angel Synth uses a really original method of generating sound, which is based on the dynamic oscillators.

http://www.gregjazz.com/

AngelSynth ( 0.84 MB )

VST

We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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