20 Best Free Synth VST Plugins

Here are the best free synth VST plugins for Windows & Mac. These synth VSTs can be used with FL Studio, Reason, Ableton Live, and other VST-supported music apps.

In this collection of free synth plugins, I’ve included details of each plugin’s features, screenshots, and videos to showcase how they operate.

I’ve downloaded and tested hundreds of free VST plugins, and these stand out as some of the best free synth VST plugins available.

Best Synth VST Plugins

I have included the best synth plugins that work for Windows, Mac, and Linux.

  1. Tunefish4
  2. Tyrell N6
  3. Dexed
  4. Helm
  5. Surge XT
  6. Yonu60
  7. OB-XD
  8. Sonigen Modular
  9. ODsay
  10. SubDuer
  11. LinPlug Alpha 3
  12. TAL-U-No-62
  13. Rez 3.0
  14. June-21
  15. OS-251
  16. Synth1
  17. Juno 6
  18. Poly 2106
  19. Phutura
  20. Osiris 6
Best Free Synth VST Plugins
Best Free Synth VST Plugins

Tutorial: How to Install VST Plugins

Instructions: Click the links below to visit each synth plugin. Look around each website for the download link or button. Do not install any suspicious software.


Tunefish4 | Free Synth Plugins

Tunefish4 is a very tiny virtual analog synthesizer.

It is developed to fit into about 10kb of compressed machine code while still producing an audio quality that can compete with commercial synthesizers. This is a great free alternative to Serum by Xfer Records.


  • Additive synthesis with wavetable generator
  • Noise generator with adjustable frequency and bandwidth
  • Filters: Lowpass, Highpass, Bandpass, Notch filter
  • 2 ADSRs and 2 LFOs for modulation
  • Supported effects: Flanger, Chorus, Distortion, Delay, Reverb, EQ
  • Stack up to 10 effects in any order


  • Multi-platform compatibility (Windows, Linux, Mac)
  • User-friendly UI with modulations visualization
  • Versatile synthesis and noise generation capabilities
  • Diverse filter options for sound shaping
  • Flexible modulation matrix for creative control
  • Offers a range of effects for sound enhancement


  • Limited preset management
  • It may require some learning curve for beginners

Tunefish4 | PC & Mac

Tunefish4 Preview

Best Synth VST Plugins

Tyrell N6 Synth VST

Tyrell N6
Tyrell N6 | Free Synth Plugins

The Tyrell N6 is a longstanding freeware software synth that many producers still use today. You can create a wide range of sounds with this synth. It’s great for adding color to your tracks.

It’s worth checking out the Tyrell N6 if you want an easy-to-use, great-sounding synth plugin.

I particularly like this synth VST plugin for its straightforward interface and robust selection of features.

Tyrell N6 | PC & Mac


Dexed | Best Synth VSTs

Dexed is a plugin synth that works on multiple platforms and supports various formats close to the Yamaha DX7.


  • Includes Factory Presets
  • Exciting Sounds

Dexed | PC / Mac / AU Plugin

Related: Free Online Synths


Helm | Best Synth VST Plugins

Helm is a powerful synth VST plugin that is cross-platform.

It offers 32-voice polyphony and an interactive visual interface. It is a cross-platform production software and a great alternative to Serum Xfer.

Helm | PC & Mac / Linux

Surge XT

Surge | Best Synth Plugins

Surge XT is a free, open-source hybrid synth VST plugin.

Features many synthesis techniques, a wide range of filters, an advanced modulation engine, a wealth of effects, and modern features such as MPE and micro tuning.

This plugin is an excellent alternative to the Nexus VST plugin and Atmosphere plugin.

Surge XT | PC & AU Plugin Formats / Linux


Yonu60 | Digital Hardware Synthesizers
Yonu60 | Digital Hardware Synth

The Yonu60 Roland Juno emulation plugin is a fantastic Roland synth emulator.

Roland’s classic synth is faithfully recreated in this plugin, including everything from LFO rate and delay time to ADSR envelopes and unison mode.

Yonu60 is a helpful plugin whether you’re familiar with Roland or just getting started. It offers great synth bass sounds.

Yonu60 | PC


OB-XD | Best Synth Plugins

OB-Xd is based on classic Oberheim’s OB-X. It recreates the OB-X’s sound and behavior, but several things were added to the original design to extend its capabilities.

The OB-Xd was designed to sound just as good and rich as the original. It uses micro random detuning, which gives it a unique analog sound.

The quality is on the same level as some of the synth instruments by Native Instruments.

OB-XD | PC & Mac / Linux

Sonigen Modular

Sonigen Modular
Sonigen Modular Free Synth VST Plugin

Sonigen Modular is a modular software synth that combines the freedom and flexibility of classic modular synthesis with the benefits of modern software implementation.


  • Fully modular with customizable patches
  • Polyphonic voice with static effects processing

Sonigen Modular | PC


ODsay  | Replica Of Hardware Synthesizers
ODsay | Popular VST Synths

The ODsay synth is an excellent emulation of ARP’s Odissey, one of the first analog synths.

This synth has two oscillators and is duophonic, which means you can play two notes at once. This is a great free alternative to the Analog Lab VST plugin.

ODsay | PC


SubDuer | Digital Hardware Synthesizers

SubDuer is a triple oscillator subtractive synth aimed at versatility but has low CPU usage. It can do basic unison, ring-mod, and FM sounds and has built-in distortion, chorus/flanger, and delay.

SubDuer | PC

LinPlug Alpha 3

LinPlug Alpha 3
LinPlug Alpha 3

Alpha 3 is the small brother of Alpha but shares the same engine and has fewer features.

Alpha 3 | PC & Mac


TAL-U-No-62  | Digital Hardware Synthesizers
TAL-U-No-62 | Best VST Synths

The TAL-U-NO-62 offers six voices that can be created simultaneously in this plugin, which is polyphonic.

This plugin comes with band-limited oscillators, giving it a different and exciting sound from other plugins. There is also a synchronized LFO with five different waveforms, adding further variation to your sounds.

There is a low-pass filter with self-oscillation and a non-resonant high-pass filter. These two filters can be beneficial if you want to tailor the sound to your liking.

TAL-U-No-62 | PC & Mac

Rez 3.0

Rez 3.0
Rez 3.0

Rez: A basic synth, but it is capable of an extensive range of sounds, so as a result, it inspires creativity.

It’s made from multiple chained filters that act as a single powerful filter, and it’s highly resonant, providing Rez with its distinctive character.

Rez 3.0 | PC & Mac



June-21 emulates the classic sounds of a Roland synthesizer. It includes the same great features as the Roland Juno keyboard, plus several improvements that open up even more creative possibilities.

This emulator is still a work in progress, so it has its share of glitches. But it is an excellent plugin with great sounds.

June-21 | PC



The OS-251 emulator has up to 24 polyphonic voices. It consists of three oscillators (Sin, Square, Saw), a square sub-oscillator, and a noise oscillator.

In addition to controlling LPF and amplitude, the LFO can also control Shape parameters. LFO synchronization is also supported.

OS-251 | PC & Mac / Linux


Synth1 | Free Synths

Synth1 is a software synthesizer. Functionally, it is modeled on the Clavia Nord Lead 2 Red Synth.

Important: The website is in a different language. But this plugin has a lot of synth sounds. Video: Synth1 VST – Over 25,000+ Sound Presets

  • 2 Oscillators
  • FM modulation
  • Ring modulation
  • Modulation envelope
  • Four types of filters
  • 2 LFOs
  • Arpeggiator
  • Tempo delay
  • Stereo chorus/flanger
  • Legato mode
  • 16 notes polyphony
  • 128 presets
  • Automation

Plugin | PC

Juno 6

Juno 6
Juno 6 Synth VST

This plugin is an analog synthesizer that emulates the sound of the original Roland Juno synthesizer via VST technology. It accurately recreates Roland’s vintage keyboard oscillators, filters, and envelopes.

Plugin | PC

Poly 2106

Poly 2106
Poly 2106

The Poly 2106 initially started as a recreation of an actual object of desire from the fashionable ’80s that was once part of music studios.

But that was just the initial kick that propelled a seemingly more enthusiastic project, which culminated into a knob-infested creation with a solid vintage backbone.

Poly 2106 | PC



A Roland keyboard emulator, Phutura is equipped with eight voices and three oscillators. An ADSR envelope and LFO are included, as well as a modulation wheel, pitch bender, and ADSR envelope.

Phuture | PC

Osiris 6

Osiris 6
Osiris 6

Six voices polyphonic synthesizer.

Osiris 6 | PC

Panzertank PM 4

Panzertank PM4 Synth VST Plugin
Panzertank PM4

Panzertank PM4 is a virtual phase modulation synth like the famous FM synthesizers.

Panzertank PM 4 | PC

Superwave P8

Superwave P8
Most Popular Free Synth VSTs

Superware is a virtual analog synth emulation for VST hosts.

Superwave P8 | PC

Fortune Cookie

Fortune Cookie 2012 is a unique ‘VA’ synth (VSTi plugin) for various types of solo and more or less typical polysynth and strange FX sounds.

It gains special uniqueness from its different sync modes and X-Torsion.

You can find the download link under the “Download Options” section.

Fortune Cookie | PC

Analog Warfare VST

Analog Warfare
Analog Warfare Free Synth Plugin

Hybrid analog-style synthesizer with groove and CV sequencer, arpeggiator, FX, and a heap of routing options.

Analog Warfare | PC

Podolski VST

Podolski Free Synth VST Plugin
Podolski Free Synth VST Plugin

Podolski is a simple, CPU-efficient virtual analog synthesizer. It is a cut-down version of FilterscapeVA with just one oscillator, filter, envelope, and two LFOs.

It also features a Zebra-style arpeggiator/sequencer plus chorus and delay effects.

Podolsk | PC & Mac / Lunix

Wavedraw VST

Wavedraw Wavetable Synthesis – Wavetable Synth VSTs

Wavetable Synth that allows you to draw your own waves.

Wavedraw | PC


Kamioooka ( Free Synth VST )

Kamioooka is a polyphonic Full-Modular synth with a patch cable system.

Ten module slots and seven types of modules are available. Freely combine modules and make patches.

Kamioooka | PC



PG-8X is a virtual analog synth with the standard 2-DCO – 24dB/oct filter design.

  • Up to 12 voice polyphony
  • Two DCO’s with Saw, Square, Pulse, Noise
  • Hard Sync and Ring Modulation
  • Two exponential envelope generators
  • 24 dB resonant LP filter
  • HP filter (3 stages)
  • Stereo Chorus
  • Import and Export of JX-8P Sysex data

PG-8X | PC


Lokomotiv – Wavetable Synth VSTs

Lokomotiv is a software synth for both Windows and Mac. It is designed to make your sounds more powerful and create a wide range of sounds easier.

  • Mathematically generated high-definition Oscillator
  • Detuned Sawtooth Wave
  • Pulse Wave with Self PWM
  • Wavetable Synthesis Module
  • Shape morphing sub-oscillator

Lokomotiv | PC & Mac

Helix ( Trial )

Helix - Best Free Synth VST

Helix is a unique synth plugin, but with a sonic clarity beyond the competition, producing soaring leads, solid basses, and glimmering pads.

The main oscillators of Helix allow you to pick from hundreds of included waveforms or load your own

Helix | PC & Mac



Sinnah is a synth based on a single complex oscillator that includes five waveshapes.

The harmonics level for all waveshapes, noise level, and a delay matrix with an increasingly spectral complexity.

It also features a subtractive stereo filter to carve the sound spectrum, similar to an equalizer.

The band rejects filter also features gain and bandwidth controls. It has three filters: high pass, low pass, and band-reject (notch).

Sinnah | PC & Mac



Digits is a phase distortion synth inspired by Casio’s CZ series but also takes that form of synthesis to the limit.

Create warm pads, glitchy sounds, dirty basses, and anything in between.

The interface is minimal and designed to enable the user to create sounds from scratch in record time.

It comes with over 70 presets that run the gamut from pads to stabs, leads, and basses.

Digits | PC & Mac



RMPx is a hybrid physical modeling and ensemble synth. It has excellent sound and is very inspiring.




This free synthesizer mimics the style of a classic Roland synth.

This plugin offers six voices of virtual analog synth sounds. Each voice comes with a circuit-modeled filter as well as two oscillators.

Plugin | PC

OP-X Free Synth VST

OP-X Synth VST Plugin
OP-X Free Synth VST Plugin

The OP-X Free has the same basic engine and sound as the full OP-X, while the available presets are limited to a few chosen ones, and the GUI only gives access to a few parameters.


Minisynth Series VST

Minisynth Series

The Minisynth series collection consists of FRET, GRIT, and PEAK. As an overall concept, Acrobatics simplified controls and packed implementations to the highest grade to push up users’ creativity first and give a steady look and maximum usability to the three polyphonic synthesizers.

Plugin | PC & Mac


Free VST Plugins for FL Studio / Free VST Instruments

This bundle of over 300 presets for six awesome free synthesizer plugins: Zebralette, Tyrell N6 v2, Synth1, Tal Noisemaker, TAL elek7ro, and TAL u-no 62.




The FB-3300 is a plugin that simulates a KORG PS-3300 polyphonic synthesizer. It’s easy to use and has excellent sound quality.

FB-3300 | PC & Mac

Anubis 2

Free Synth VST Plugins - Best Synth VSTs
Anubis 2

The Anubis 2 plugin is a hybrid synthesizer that includes sound synthesis methods such as subtractive, FM, and additive.

  • 32 voices polyphonic
  • Unison up to 8 voices
  • Same waveforms as Dionysos with sync & FM
  • 3 layers multimode filter
  • 2 LFO
  • 1 Mod Envelope up to 32 stages
  • Drifting effect
  • Chorus
  • Delay
  • 9×7 Digital Mod-Matrix
  • MIDI learn

Anubis 2 | PC

Artemis VST


Artemis is a VST synth that offers two unison oscillators, a ring modulator, and two mod envelopes.

  • Two unison oscillators
  • Oscillators sync and cross-modulation
  • White/brown noise generator
  • 2 HP/LP filters 12/24 DB in serial and parallels
  • 2 DADSR mod-envelopes
  • 2 LFO in free-run / Host BPM sync
  • LFO 1 can modulate LFO 2
  • Ring modulator
  • Delay
  • Resonator
  • Chorus
  • 6 x 13 digital modulation matrix
  • Audio routing
  • MIDI learn

Artemis | PC



Gnat is a VST plugin for keyboards, utilizing analog and digital synthesis to produce a range of sounds, from light pads and strings to darker textures.

The ADSR envelope and velocity filter allows for an even more customized sound.

The plugin includes 50 presets to get you started.

Gnat | PC & Mac

Athmonova 2


Virtual Analog Synthesizer Module.

  • 1 OSC
  • 1 Noise OSC
  • 1 Filter with LP/HP/BP/Formant
  • 1 Lfo with different Routings and Delay/Depth
  • 3x ADS/r Filter/Mod/Envelope
  • 1 Overdrive/Distortion
  • 1 Pingpong Delay
  • 1 Stereo Wider

Athmonova 2 | PC & Mac


VMP1 - Best Synth VSTs
  • 16 Note Polyphonic / Mono
  • 4 Oscillators Saw / Square / Sine / Free
  • Free Wave oscillator has wave select
  • Tune for each oscillator + on/off switch
  • Feet select and volume for each oscillator
  • White noise level control
  • Midi Channel selector
  • Frequency Modulation Section
  • Filter Section
  • Filter selector
  • Low / High / Band Pass
  • Filter Controls


Moon Sono Sx VST

Moon Sono Sx
Moon Sono Sx

Features two VCOs with changeable waveform (sawtooth, triangle, square, pulse), one low-pass VCF, a VCA, and two multimode LFOs for modulation. The Sono is a two-oscillator duo-phonic synth.

Moon Sono Sx | PC

Logana VST


This plugin uses physical modeling to emulate analog waveforms, but better.

  • Four waveforms: Sine, Saw, Pulse, Triangle
  • Tone-adjustable noise generator
  • Modulation matrix and envelope
  • LFO modulates pitch and pulse-width
  • Adjustable slope lowpass filter
  • Amplitude envelopes with overdrive distortion

Logana | PC

Pluton VST

Free Synth VST Plugins - Best Synth VSTs

Twelve voices polyphonic, Full MDI learn implementation, Envelope & LFO Host syncable.

  • 12 Voices polyphonic
  • 2 x Oscillator with four waveforms (Sine, Saw, Triangle, Pulse)
  • Noise Generator (White or Pink Noise)
  • ADSR Envelope for Amplifier
  • Full graphic envelope modulation
  • 5×5 Modulation Matrix
  • Low-pass and Band-pass filters
  • LFO with five waveforms or Random or Off
  • Chorus effect
  • Vibrato. Glide
  • Mono Mode
  • Master Volume control
  • 70 Presets

Pluton | PC

Radium VST

Free VST Plugins for FL Studio / Free VST Instruments

Sixteen voices polyphonic, subtractive / FM 2 operators synth, MIDI learn implementation, Comfortable XY Pad, Auto Pan.

Radium | PC

Lektro VSTi

Free VST Plugins for FL Studio / Free VST Instruments

Lektro VSTI is a Phase Distortion Synthesizer with a lot of modulation capabilities.

  • 2 Phase distortion Oscillators
  • A Waveshaper
  • 3 LFOs, of which one can be used as a sub Oscillator.
  • An LFO waveshaper
  • A Randomizer
  • 2 ADSRs
  • A Tone Controller
  • A Filter with 13 different modes
  • A Delay

Lektro | PC



RACK 2 is a powerful synth VST plugin that can create unique rhythms and melodies with algorithmic and generative techniques. Its sounds in real-time and processed live audio make it perfect for multi-track pieces.

You can also design your own synth patches with the 30+ built-in modules. There are 170+ official modules from Eurorack manufacturers and 2000+ modules in the VCV library if you need more options.

  • 30+ built-in modules
  • 170+ official modules from Eurorack manufacturers
  • 2000+ modules in the VCV library

RACK 2 | PC & Mac / Linux



Traveller is a monophonic synth inspired by Korg Synthe-Bass and its overall simplicity. It has one oscillator with six different waveforms (two of these are PWM-modulated square, and one is noise).

This plugin is perfect for those just starting to explore the world of synthesis, as it is straightforward to use and has a very intuitive interface.

  • Monophonic synth
  • One oscillator with six waveforms
  • Simple, effective interface

Traveller | PC



Pendulate is a unique and innovative synth that can create sounds never heard before. Its features include a chaotic oscillator, wavefolder, and an innovative modulation UI. Besides, it also has an envelope and LFO.

  • Chaotic oscillator
  • Wavefolder
  • Innovative modulation UI
  • 136 presets

Pendulate | PC & Mac

Labs Synth Pads

Labs Synth Pads
Labs Synth Pads

This plugin is a washy ambient texture that will help build the background harmony or atmosphere. You can use it to create pads, soundscapes, and drones.

If you are looking to pad out the sound of an orchestra or film score, look no further – this plugin is easy to use and perfect for beginners and pros.

  • Easy to use
  • Suitable for beginners and professionals

Plugin | PC & Mac



OctaSine is a frequency modulation-based synthesizer plugin with four operators that can be routed flexibly. It also has four LFOs with multiple waveforms, one-shot and loop modes, and optional DAW BPM sync.

The ADSR envelope with algorithm slopes controls the overall sound. You can also add white noise to each operator for more sound options.

The routing options and LFOs allow you to create a wide range of sounds, from simple sine waves to more complex, evolving sounds.

  • Four operators with flexible routing
  • LFOs with multiple waveforms
  • ADSR envelop with algorithm slopes
  • White noise generator

OctaSine | PC & Mac / Linux



Charlatan synth is perfect for sound designers and music producers looking for high-quality sounds. Its two oscillators can be used to create a wide variety of sounds, and the unison mode allows for up to 7 voices to be played at once.

Its stereo noise generator is perfect for creating atmospheres and effects, and the ADSR envelope generators allow for a wide range of sound-shaping possibilities. The LFO also hosts tempo-synchronization, making it easy to create pulsing and rhythmic sounds.

  • Two oscillators with saw, square, and noise waveforms
  • Stereo noise generator
  • Three voice modes: monophonic, monophonic legato, and 8-voice polyphonic
  • ADSR envelope generators
  • LFO with tempo-synchronized

Charlatan | PC



ModulAir is a modular polyphonic software synthesizer that offers many features and possibilities. Its fully modular architecture allows for up to 18 modules per patch, and there are 55 module types available.

The ModulAir Voice module is polyphonic and can handle up to 64 voices of polyphony, while the master module is monophonic. Additionally, external signal processing is possible with this synth, making it even more versatile.

  • Up to 18 modules per patch
  • 55 module types
  • Up to 64 voices of polyphony
  • External signal processing

ModulAir | PC & Mac



XenFont is a perfect synth for musicians who want to experiment with microtonal pitch bends and transpositions. Its two oscillators are also great for creating rich, hybrid sounds.

  • Precise microtonal tuning
  • Velocity modulation of harmonics
  • Easy to use
  • Powerful sound design capabilities

XenFont | PC

Exakt Lite

Exakt Lite
Exakt Lite

This plugin is perfect for any producer who wants to add some classic FM synthesis to their tracks.

The intuitive drag-and-drop envelope system makes it easy to create complex sounds, while the visualization of the resulting waveform helps you understand exactly what you’re creating.

  • Drag-and-drop envelope system
  • Visualization of resulting waveform
  • Classic FM synthesis

Exakt Lite | PC & Mac



Syntler is a great synth for creating some explosive sounds and rhythms. This synth is perfect for those who want to create some hard-hitting beats.

The three oscillators provide plenty of sound options, and the LFO is great for creating some wild sound effects. The 32 editable presets give you a good starting point, but you can also create your own sounds from scratch.

  • Three oscillators
  • 32 editable presets
  • 1 LFO

Syntler | PC



If you’re looking for an intense synth plugin that can create deep, dark basses and aggressive lead sounds, Monique is a perfect choice.

This powerful plugin comes with a special free filter routing that gives you endless possibilities for sound design.

  • Special free filter routing
  • Continuous morphable oscillators
  • Advanced modulation and automation possibilities
  • Sequencer

Monique | PC & Mac / Linux



This is a powerful synth with three oscillators and various modulation options. Its filters are particularly noteworthy, and the two LFOs offer a wide range of frequencies, making it easy to create complex modulations.

  • 3 Oscillators
  • Wide range of modulation options
  • Great filters
  • 2 LFOs

BrainStormer | PC



Crio is a powerful virtual analog/FM synthesizer that will let you produce stunning sounds with ease. It features one oscillator with a noise generator and three voices, including a sub-oscillator.

  • Digital analog synth
  • 1 oscillator
  • Noise generator
  • 3 voices (sub-oscillator included)
  • Slide tone control

Crio | PC



Cobalt is inspired by many of the hybrid software synths of the 80s, so if you’re a fan of that era of music, you’ll definitely enjoy what this plugin has to offer.

Cobalt is perfect for beginners and experienced synth users with its straightforward interface.

  • Inspired by classic 80s hybrid synths
  • Straightforward interface
  • Perfect for both beginners and experienced users

Cobalt | PC



Kern is a powerful synth that can be used to create a range of sounds. It’s streamlined for use with MIDI keyboard controllers so that MIDI CC can control all parameters.

  • 32 voices of polyphony
  • 4-pole zero-delay feedback lowpass filter
  • Chorus effect

Kern | PC & Mac

Analog Nexus

Analog Nexus
Analog Nexus | Free Synth Plugins

Analog Nexus is a vintage-style warp synthesis synthesizer with extended possibilities of modulation. This plugin is perfect for creating fat and strange sound landscapes.

Its features include four waveform oscillators, two effects (Reverb and stereo Delay), detune effect, and 64 presets. MIDI Learn allows you to control the plugin with your MIDI controller easily.

  • 4 waveform oscillators
  • 2 effects (reverb and delay)
  • MIDI Learn
  • 64 presets

Analog Nexus | PC

Voltage Modular Nucleus

Voltage Modular Nucleus
Voltage Modular Nucleus | Classic Synths

This plugin is a perfect way to add some life to your music. With over 130 presets, you’ll have plenty of options.

The oscillator and filter modules are compelling, allowing you to create complex sounds.

  • Over 130 presets
  • Oscillator and filter modules
  • Amplifier

Voltage Modular Nucleus | PC



This plugin sounds like something from a different world. With its lush Moog filter and two delays, it can create beautiful and ethereal sounds.

Its ADSR is also top-notch, perfect for creating long, evolving sounds. Its implementation of the KxStep EQ is ideal for those who want to add a bit of grit to their sound.

  • 2 delays
  • Lush Moog filter
  • ADSR envelope
  • KxStep EQ




This powerful hybrid synthesizer allows you to combine classic subtractive, FM, or ring modulation synthesis techniques simultaneously.

With two independent oscillators, a wide range of waveforms to choose from, and each oscillator having its own filter, amp, and ADSR envelope controls, you can create unique sounds.

  • 2 independent oscillators
  • ADSR Controls
  • A wide range of waveforms
  • FM & ring modulation synthesis

Plugin | PC & Mac



This is a small but powerful virtual analog synthesizer. It’s perfect for creating a wide range of sounds with six voices, two oscillators, and a multimode filter.

The three envelopes and 1 or 2 LFOs give you plenty of control over the sound, and the arpeggiator and random generator add an element of chance to the mix.

  • 6 voices
  • 2 oscillators
  • 3 envelopes
  • 1 or 2 LFOs

acidrack | PC

Abakos PRO

Abakos PRO
Abakos PRO

Albakos PRO is a powerful synthesizer with two oscillators, allowing you to create complex sounds easily. It also features an arpeggiator, perfect for creating hypnotic melodies and rhythms.

  • 2 oscillators
  • Arpeggiator
  • Onboard effects
  • Noise generator

Abakos PRO | PC



If you’re looking for an old-school synth with that classic analog sound, 5-SC is your plugin.

It features a single oscillator with various wave shapes to choose from and an LFO modulation control for pitch, filter, and amp.

There’s also a portamento control for that classic sliding sound, and you can even add delay and reverb effects to your signal. Plus, with MIDI learn, it’s simple to integrate it into your DAW or live setup.

  • Single oscillator with multiple wave shapes
  • LFO modulation for pitch, filter, and amp
  • Portamento control
  • MIDI learn

5-SC | PC



Boogaloo is the perfect synth for creating 80s retro sounds. It has an intuitive GUI that makes it simple to create the sounds you want.

  • Intuitive GUI
  • Wide range of sound-shaping options
  • Classic 80s sounds

Boogaloo | PC

Alphatron SE

Alphatron SE
Alphatron SE

Alphatron SE is a fantastic synthesizer that offers a wide variety of features.

Its hybrid design allows it to combine the best of both worlds, delivering a powerful and versatile sound perfect for any music producer.

The wide range of look options and the high-quality sound output make it one of the best free synth plugins available. It is sure to become an essential tool in your sound design arsenal.

  • Hybrid design
  • Wide range of modulation options
  • High-quality sound output

Alphatron SE | PC



VST audio filter (LP, HP, BP, Notch, Peak.) 1 envelope, 2 LFO, Bpm syncable, eight-step sequencer.

Ceres | PC


Bleep | Free Synth Plugins

Bleep is a free synth VST plugin for Windows, which is inspired by the sound of MOS Technology SID.

Bleep | PC

What Is A Synth Plugin?

A Synth is an electric musical instrument that produces sound by generating audio signals. Synthesizers generate waveforms using subtractive, additive, oscillators, and frequency modulation.

A Synth VST plugin is a virtual version of a synthesizer that you can use with any VST-supported software. There are three primary categories of synths which are Analog, Digital, and Hybrid.

I hope you enjoy these free synth VST plugins to use with your favorite digital audio workstation. These plugins are great for music producers, sound designers, and beat makers.

Whether you are making Hip Hop, Electronic Music, Trap, or any other type of music, you will find great synth plugins with incredible sound quality for music production.

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Mark V.

Written By Mark V.

Mark Valenzuela is a professional blogger, entrepreneur, and educator with more than 15 years of experience in music production. In 2008, Mark founded Hip Hop Makers, a top resource for aspiring music producers and beatmakers. He specializes in content on music production, software, gear, and free music resources. Committed to empowering creators of all levels, Mark continues to inspire and help music creators pursue their dreams.

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