The 16 Best free synth VST plugins

Best free synth VST plugins

If you’re looking to make your audio tracks more appealing and interesting, then you really need to use the free synth VST plugins. Synths are offering you a cool way to make your music even better and more interesting. While analogue synths are expensive, synth plugins are rather affordable, and you can find many free of charge.


Zebralette sounds amazing and the best part about it is that this is just an oscillator set from Zebra2. That being said, it does have a great array of features like oscillator waveform editing with spectroblend, geomorph, geoblend and spectromorph modes. It also includes 24 spectral effects, a stereo VCA with volume and pan modulation! All in all, it’s an amazing free synth VST plugin and one that works great specifically for electronic and EDM music in particular. However, you can use it in most genres with a bit of creativity!


With Thump you are able to synthesize low frequency audio. Either that, or you can add a new set of sounds if you want. This is a great VST plugin if you want to bring in an old school synth drum sound. Plus, you have two independent oscillators, not to mention there are things like 12+ presets detailed metering and complete control if you want to mix the synthesized sound with the overall source as well.

T-Force Alpha Plus

T-Force Alpha Plus brings in some interesting features like new synthesis, new Mod Envelopes, revised oscillators and so on. It also has 3 free running multiwave oscillators, 1 noise oscillator and subtractive/FM support. It’s a product that delivers a tremendous value for money, so we recommend you to give it a try, especially if you need a dedicated sidechain FX system. We guarantee that you will not be disappointed with it!


Charlatan’s main benefit is that it focuses on ease of use and sound quality. It’s a subtractive and polyphonic analog synth plugin. It makes it easy for you to learn how to adapt sounds so you don’t have to rely on presets all the time. It’s great for experimental noises,  but it also offers a way to create classic synth vibes which are a pleasure to use. There’s a stereo noise generator here, 2 oscillators that support shape modulation, as well as 2 ADSR envelope generators and an LFO that has host tempo sync.


Scorpius is a great free synth VST plugin that offers you some amazing psychedelic sounds. The interface is not the most intuitive, however it has a vast range of different features for you to explore. It has a ring modulator, flanger, stereo delay, routing options, 2 filters, 3 oscillators and many others. It’s definitely one of the coolest VST plugins for a different, rewarding sound.


Even if PG-8X is inspired by an old school program, it does have a great analogue synth experience. The bass sounds are very impressive, you also have cool pads and string ensembles. Some of the features provided by PG-8X include a 3-stage HP filter, stereo chorus, hard sync, 24 dB resonant LP filter and 12-voice polyphony among others.


Tal-NoiseMaker is quite simple, intuitive and easy to use. It also has features like a bit chrusher, chorus and reverb. With 256 presets you will get a really good experience, and the reality is that all these presets are working super nicely. We encourage you to test it especially if you want to use the great 3 oscillators. It’s a fully customizable synth VST plugin with lots of versatility and value.

Best free synth VST plugins

While Podolski is not the most complex VST plugin, it’s very convenient and CPU efficient. It has an oscillator with varied symmetry, multiple modes like legato, mono or polyphonic, as well as 4 envelope modes, a multimode filter and more than 520 factory presets. That goes to show the great value you can get from it, not to mention there are some delay effects you can use as needed.

Best free synth VST plugins

Matt Tyrell’s Helm is a polyphonic synth that can also be used as a standalone. It has a 64 and 32 bit version too. Unlike other synth VST plugin options in this list, this one actually has a great interface and you won’t have a problem identifying and adapting stuff as you go along. Even if it might seem a bit intimidating in the beginning, it looks really well and that’s what really makes it worth the effort.

Best free synth VST plugins

MiniSpillage is one of the most interesting drum synths you can find out there. It brings you a set of synthesis algorithms created for electronic percussion and it also has a high resolution 64-bit DSP processing engine. The interface is great, it also has ADSR envelopes and custom algorithms that really make it stand out of the crowd and very powerful.

Best free synth VST plugins

Lokomotiv’s main focus is to create a very good analog retro synth sound. This sounds really well and it has a simple interface too. What we like about Lokomotivis the fact that it has a lot of features. It comes with an oscillator, filter, modulator and specification tools. Since it’s not overwhelming, it will offer you a great experience while still making it easy to create impressive sounds very fast and easy.

Best free synth VST plugins

If you need a good phase distortion synth plugin, then Digits might be able to help. Its interface is quite unique and it delivers 100 presets. These have things like brass sounds, realistic instruments, pads, leads, basses and many others. You even get access to a harmonic bit crush, flanger, realistic instruments and other great tools. It’s certainly worth it so you should give it a try for yourself. It works super nicely and the best part is that the interface is very good especially for beginners. Changing the audio parameters might make things crack a little. Yet if you get past that, it’s actually a nice plugin.

Crystal Synth
Best free synth VST plugins

Crystal Synth comes as a semi-modular software synth. It has both frequency modulation as well as subtractive synthesis. You have more than 90+ parameters to work with, tempo sync, dedicated effects, a band splitter and wave sequencing. They also integrated granular synthesis, and multi-stage envelopes with graphic editing. The problem for a lot of people is the interface is not the best, it can become rather overwhelming. But if you get past that, you will find it pretty interesting to use. It just takes time to get used to the features and the overall interface alignment.

Best free synth VST plugins

The name clearly shows that this is a synthesizer created for bass and it does a very good job at it. With its help you can get effects and acid tones that you can’t get anywhere else. You can use this for EDM, trap and even dance music where you use bass a lot. It’s actually going to help you a lot with its numerous presets, the MIDI automation, great panic button, sub-oscillator and bandlimited oscillators. Overall, it’s a great tool to use and you will find it incredibly impressive and a pleasure to use.

Muon Tau Bassline
Best free synth VST plugins

This monophonic bassline synth is very similar to the Roland 303 synth, a very popular unit. What they did very well here is the interface. Instead of going the overly complicated route, they did the opposite and that means offering a better experience to customers and the results are incredible because of that. It’s a good tool especially for beginners. But despite the focus on beginners, everyone can use it without issues. There are things like an 18 db lowpass resonant filter, complete MIDI control or the great 64-bit waveform oscillator that really make the difference. You will find it incredibly different when compared to other free synth VST plugins and that’s for the best.

Best free synth VST plugins

Helix is very flexible, easy to adapt to your needs. They have a lot of built-in sounds and presets. You can pay for a license, but the free trial is fully functional. It has more than 1000 presets you can use, 10 different distortion types, 17 filters as well as deep modulation. It’s very powerful, dependable and you will certainly find it a pleasure to use and adapt to your needs. It’s well worth your time, especially if you are into creating great music.

Combo Model F
Best free synth VST plugins

You must use Combo Model F if you want an organ synth. As you can imagine, it’s very simple but you can adapt it to your needs without a problem. One thing to note is that it has a great harmonic range, a volume pedal, bass voice, a knee lever control and full automation. It’s certainly worth your time and if you check it out this will be a very good tool to use.


You don’t have to pay a lot of money for synth VST plugins. There are many free options that will work just as well. If you take your time and study the market, you will find that there are free alternatives to just about any synth plugin, so don’t hesitate and give these a try. You will be very impressed with the value and versatility provided by these great VST plugins!


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