B-Station

B-Station free software-synthesizer by Odo Synths

B-Station is a free software synthesizer developed by Odo Synths. Available format(s): VST for Windows.

B-station 2 is a simple but powerful bass plugin.

Features:

  • 3 oscillators: Every oscillator has a fine tune, octave, pw, volume and 5 different waveforms.
  • Mod oscillator for Pulse width and for phase modulation.
  • 4 filters types: Low-pass / band-pass / hi-pass / 4-pole. The filter has an envelope ADSRLT, 12 curves and a BPM LFO.
  • Modulation Envelope for pitch and Pulse width.
  • Vibrato, Bitcrusher, Drive, Low- / Hi-boost.
  • Arpeggiator.
  • Velocity filter and volume on / off.
  • Glide / Retrigger and a master volume.
Made with SynthEdit

https://theodosynthsarchive.wordpress.com/

B-asault

B-asault free software-synthesizer by scamme

B-asault is a free software synthesizer developed by scamme. Available format(s): VST for Windows.

Features:

  • 2 waveform oscillators.
  • Arpeggiator.
  • ADSR envelope.
  • LFO.
  • LP/BP/HP filters.
  • Mono mode.
  • Pitch wheel switching to joystick.
Made with SynthEdit

http://www.sanusart.com/

AZeta66

AZeta66 free software-synthesizer by AZeta

AZeta66 is a free software synthesizer developed by AZeta. Available format(s): VST for Windows.

Features:

  • 6 voice polyphonic.
  • 3 oscillators (Saw, Sine, Tri, Pulse, Ramp, White Noise, Pink Noise).
  • Resonant filter.
  • 3 LFOs with various modulation options.
  • Chorus and Distortion.
Made with SynthEdit

http://azeta66.altervista.org/

Autumn Tales

Autumn Tales free softsynth-preset by Sonus Dept.

Autumn Tales is a free software synthesizer preset pack for Fm8, made by Sonus Dept..

Autumn Tales is a sound library for Native Instruments FM8.

Autumn Tales features 25 patches that can fit a wide number of genres, covering sonic palette that goes from atmospheric pads to drones and arpeggiated leads.
A special care has been put in the morph control, so that each sound can deeply morphed and radically changed.

http://www.sonusdept.com

Automat

Automat free software-synthesizer by alphakanal

Automat is a free software synthesizer developed by alphakanal. Available format(s): Audio Unit for macOS.

Automat is a polyphonic stereo subtractive synthesizer.

Features:

  • Subtractive synthesis.
  • 3 anti-aliased oscillators.
  • Filters and amplifier.
  • 2 ADSRs for filter and amplifier.
  • 6 modulators with tempo sync.
  • Waveshaper / Eq.
  • Delay with tempo sync.
  • Modulated spatial effect.
  • Poly-, unisono and legato-mode.
  • MIDI learn.

http://www.alphakanal.de/

Autogun

Autogun free software-synthesizer by Image Line

Autogun is a free software synthesizer developed by Image Line. Available format(s): VST for Windows.

Autogun offers 4,294,967,296 (Four Billion Two Hundred Ninety Four Million Nine Hundred Sixty Seven Thousand Two Hundred Ninety Six) presets, just waiting to be explored for their acoustic potential.

Autogun is based on the Ogun VSTi synthesizer that can produce rich metallic and shimmering timbres, although it’s not limited to these sounds as Autogun will demonstrate. Ogun’s distinctive synthesis engine can generate more than 32,000 harmonics, modulated by high-level ‘harmonic mapping’ functions. These synthesis parameters have been put under the control of an artificial intelligence, patch creation algorithm, the reason Autogun can deliver such a huge number of presets.

Every Autogun is set to start from a unique preset number, so that each Autogun user is assigned a personal starting preset-address, ready to explore. However, users can at any time, jump to a new location in the preset-space by simply entering a preset number.

With so many presets Autogun needs no programming, every sound is already somewhere ‘out there’ and just needs to be found.

Key features:

  • Based on the Ogun synthesis engine.
  • Enhanced by the Soundgoodizer, (Maximus) engine.
  • 4,294,967,296 presets to explore.
  • Preset number copy/paste field.
  • Preset up/down buttons.
  • Volume control.

https://www.image-line.com/

Aurea

Aurea free software-synthesizer by Dario Lupo / Daze

Aurea is a free software synthesizer for Reaktor, developed by Dario Lupo / Daze. Available format(s): for Windows, macOS.

Aurea is a 3-Parabol-oscillator synthesizer for Native Instruments Reaktor.

http://www.dazesounds.com/

AudioTexture Free

ZynAddSubFX free software-synthesizer by paulnasca 2

AudioTexture Free is a free software synthesizer developed by Le Sound. Available format(s): VST, VST3, Audio Unit, AAX for Windows 64b, macOS.

AudioTexture Free is the free version of AudioTexture plugin which loads and processes contents from Freesound. A dedicated browser interface has been designed for an integrated workflow to use Freesound content with AudioTexture. You can search with filter/sorting criteria and preview right in the browser. The browser displays the most essential information about the sounds and allows double-click to directly load into AudioTexture synthesizer.

Freesound License Notice

Sounds on Freesound are free to use, however few exceptions exist depending on what license criteria the sound creator chose, or if you want to use the sounds commercially. You should check the legal text for each license to understand the terms, however generally you can do the following depending on each license:

  • CC0: You can use the sound without restriction.
  • Attribution: As above but you must provide a credit to the sound creator.
  • Attribution Non-Commerical: As above but you can not use the sound in commercial works.

https://lesound.io

AudioKit Synth One

AudioKit Synth One free software-synthesizer by AudioKit Pro

AudioKit Synth One is a free software synthesizer developed by AudioKit Pro. Available format(s): stand alone application for iOS.

AudioKit Synth One is the world’s first professional free & open-source iPad Synth:

  • Includes over 300+ presets by sound designers who have worked with M83, Tycho, Rihanna, Kanye West, Red Sky Lullaby, Brice Beasley, Dj Puzzle, Electronisounds, James Edward Cosby…
  • Hybrid Analog/FM Poly Synthesizer.
  • Over 300+ Presets crafted by famous sound designers.
  • Audiobus 3 & Inter-app Audio (IAA).
  • AUM, BeatMaker 3, Cubasis, GarageBand compatible.
  • Five Oscillators (2 DCO, FM, Sub, Noise).
  • 2 Assignable LFOs with dozens of routing possibilities.
  • 100+ Alternative Scales & Tunings.
  • Vintage-Style 16-Step Sequencer.
  • Classic poly arpeggiator.
  • MIDI in (Control with a MIDI Keyboard or DAW).
  • Touchable ADSR Envelopes for Amp & Filter.
  • FM Oscillator w/ Mod.
  • Dedicated Sine/Square -12/24 Sub Osc.
  • 4-Pole Vintage Low-Pass Filter.
  • High-Pass/Band Pass Filters.
  • Mono portamento & legato.
  • Beautiful Sean Costello Reverb.
  • Multi-tap (ping-pong) delay.
  • TouchPads.
  • Preset Import/Export & More…
  • MIDI Learn on all knobs.
  • Compact app size (under 25MB).
  • MIDI Bank (MSB) /Patch Change & Sustain Pedal support.
  • Full Source code included.

{See video at top of page}

https://audiokitpro.com

AU303

AU303 free software-synthesizer by AA

AU303 is a free software synthesizer developed by AA. Available format(s): Audio Unit for macOS.

  • A TB-303-like kind of toy.
  • 16 pattern/16 step sequencer with note and velocity control for each step.
  • Resonance, cutoff and decay controls for the filter.
  • MIDI Learn.

http://airy.andre.online.fr/