The 8 Best Free Auto-Tune VST/AU Plugins of 2020!

Last Updated on October 15, 2020 by Facundo

Auto-Tune is everywhere and everyone is using it…

From slight pitch correction to some cool robotic sounds, pitch correction software can be extremely useful.

T-Pain made this effect very popular, but it’s also been used by a lot of other artists such as Daft Punk, the Black Eyed Peas, and more.

Auto-Tune can be used to achieve a lot of different effects and you don’t need to spend hundreds of dollars on the Pro version of the Software since there are a lot of free ones available.

In this post I’ll go over the best free pitch correction plugins available for Windows, Mac and even Linux.

Let’s get started!

Related: I also wrote an Article about the best Pitch-correction/auto-tune plugins in general, not just free ones.

1. GSnap – (Windows)

GSnap is one of the best free pitch correction plugins out there…

The reason behind this is because of its capability to control the notes that it snaps to through MIDI.

This means that if you need to corrects a singer’s performance through pitch correction you can play the notes on a piano and feed these notes into the plugin…

GSnap will now use those notes as a guide and will correct the pitch to whatever notes are in the MIDI file.

This will also prevent unwanted snapping to other notes.

If you don’t want to control the plugin through MIDI, then you can set any scale you’d like or control it by turning certain notes on or off.

The interface is fairly easy to use and understand:

On the left you can see the original notes and the ones it’s snapping to, which will not only give you a visual representation of what’s going on…

But also allow you to fine tune everything more easily.

It has a 12-knob control system which is divided in the following way;

Detection: Min Freq, Max Freq, Gate, and Speed knobs.

Correction: Threshold, Amount, Attack, and Release knobs.

MIDI: Pitch bend, Vibrato, Vib Speed, and Calibrate knobs.

All of these knobs allow you to edit everything with precision and accuracy.

One thing I find very useful in this plugin is the gate…

The gate gives you the ability to select on what parts the plugin actually affects the sound…

E.g. If you only want to affect the louder parts, or more importantly, if you don’t want the plugin to trigger on any unwanted noises on that track and just the vocals.

This is an incredible plugin, especially since it’s free and it can do anything from robotic sounds all the way to a very subtle correction without being noticed.

You can download it here.

Are you looking for a new DAW? Here’s a list of the best DAWs currently available!

2. Graillon2 – (Win/Mac)

The first thing you will notice when looking at Graillon2, is the way its interface is designed…

It has this vintage vibe to it which is just fantastic to look at.

It’s a very intuitive plugin to use and its color scheme which makes it easy to navigate.

It is a very visual plugin since it has a display where you can see the notes that are being played as well as where Grallion2 is snapping/correcting them to.

This plugin is specifically designed for vocals and the pitch shifting can be smoothly adjusted from minus 12 to plus 12 semitones.

One cool feature is the “preserve formants” knob which, in theory, helps you preserve the tone and characteristics of the vocal track while shifting the pitch.

In some cases, this ends up creating some issues, so make sure to play around with these settings to see what happens.

The speed knob is also pretty useful since it helps the notes “stick” a little longer, reducing the pitch correction jumps.

However, don’t go overboard with this effect since notes can end up sticking too long…

Grallion2 also allows you to choose how fast or slow the snapping occurs; this is done by adjusting the “smooth” knob.

Basically, it allows you to control how fast the notes will jump from one another.

By adjusting the controls on the “bitcrusher” section, you should be able to achieve some pretty cool growl sounds.

The typical controls such as dry/wet, low-cut and output level adjustment are also included.

Lastly, the Pitch Correction module can be driven by MIDI, just like with GSnap.

If you like the vintage look on this plugin and you need a good all-rounder, then Graillon2 may be the one for you.

There is one important note though: It’s not completely free but rather “freemium”.

Basically, you won’t get its full functionality unless you buy it.

With the free edition you only get the “pitch shifting” and “pitch correction” features.

If you want the full version then it will set you back about $25.

You can download it here.

If you’re looking for the best free VST plugins in the world, I have a list of 225 of them.

3. MAutoPitch – (Win/Mac)

Melda Productions is a renowned audio plugin company that created other free plugins such as the MRing Modulator, the MFlanger, MTremolo, and more…

You can find all these plugins in another post I wrote about the best Free Modulation Plugins.

Even Deadmau5, who is a very famous electronic musician, uses these plugins, which is a testament to their quality.

This plugin comes with the typical pitch correction software options such as depth, detune and speed…

However, it also includes some additional controls such as a dry/wet knob, a width knob which will allow you to control the stereo spread, and the keep- and shift-formants knobs.

You may not know what shifting the formants does, so here’s a really quick explanation:

It allows you to make the sound deeper or higher, in other words “more masculine or feminine”…

However, keep in mind that this can alter the pitch if you go too far.

MAutoPitch allows you to choose between different scales so that you can quickly adjust it to your song…

These scales are;

Chromatic, major, minor, and pentatonic.

It also provides you with a visual display of what notes are being detected by the plugin.

Even though it does have some amazing features and is definitely worth using, there are some cons to it:

First of all, the free version comes with a banner on the bottom that is a bit annoying to look at…

If this isn’t something that annoys you too much, then by all means download it!

Also, the pitch correction isn’t the best since there’s some unintentional snapping to unwanted notes…

Even after you set the notes and the scales perfectly and all the settings are in place.

The MAutoPitch plugin also includes a limiter which should help you keep your sound from clipping.

All in all, it’s a great free plugin that could make a great addition to your arsenal!

You can download it here.

Looking for Vocoder VSTs? Here’s a post I wrote about the best ones.

4. KeroVee – (Windows)

KeroVee was created back in 2010 by the Japanese company “g200kg”.

The whole point behind this software was to create a super precise vocal pitch adjustment plugin without focusing too much on the other effects that can be achieved; like a robotic sound.

This is why KeroVee is an excellent alternative for anyone who just wants to apply some subtle and precise adjustments to their vocal tracks.

Similar to Gsnap and Graillon2, you have the option to route the MIDI notes to KeroVee.

This will allow the plugin to use these notes as a guide and correct them properly which is essential to tell the plugin exactly what notes the singer should be on.

On the left you can see which notes are being played and where KeroVee is correcting them to.

Using MIDI to guide the plugin is great, however this might take some time to set up…

This is why KeroVee also allows you to select which notes you want it to correct to, or not, through a simple clickable interface…

Simply click on them to enable or disable them and that’s it!

KeroVee shares a lot of parameters with most other autotune plugins, however there is one that’s unique to it which is the “nuance” one;

The “nuanceknob lets you select whether or not to keep the vibrato of the original sound, making the vocals sound more natural while still being autotuned.

Note: If set to max, even the smallest vibrato will trigger the correction, resulting in a mechanical sound.

There are loads of other typical controls and functions available with this plugin like Tunespeed, formant shifting, panning, volume, etc.

Like I mentioned earlier, KeroVee is excellent for fine tuning the vocal track and doesn’t really emphasize too much on achieving robotic sounds, etc.

If this is what you need, an autotune plugin designed for detailed vocal adjustment, then definitely check this one out!

You can download it here.

Looking for free guitar VST plugins? Here are the 15 best ones.

5. X42 Auto-Tune – (Win/Mac/Linux)

X42 Auto-Tune is intended to correct the pitch of a voice singing (slightly) out of tune.

It works by resampling and looping the signal and does not include formant correction, which means that it should be used to correct small errors only and not to really transpose a song.

Even though it is a very simple pitch-correction plugin, it actually does a decent job at what it’s supposed to do.

The interface is very easy to navigate; however, it doesn’t look too great, at least not when compared to Graillon2, but this doesn’t mean that it’s at all complicated to use.

Just like with GSnap and Graillon2, X42 Auto-Tune can be controlled via MIDI and it will adjust the pitch to whatever notes you set it to.

If you don’t want to go through all the work of laying down a MIDI track, you can input a fixed number of notes in any key and the plugin will correct to the notes on that key.

It comes with a “Bias” knob which controls how long the original note lasts before it corrects it to either the ones you selected from the scale or the ones input through MIDI…

This allows it to go off-tune more than would be the case otherwise.

The “Bias” control is essential since it won’t instantly snap the notes to the one selected on the scale, giving it a more natural sound.

Similar to the “Bias” control you also have the option to use the “Offset” control…

This one gives you the option to adjust how far from the note the singer is allowed to go before it corrects it.

Both of these parameters are designed to keep the vocal recording sounding more human and natural.

If you’re looking for a very simple and easy to use pitch-correction tool that focuses mainly on subtle changes, then X42 Auto-Tune might be a great alternative for you.

You can download it here.

Looking for free Piano VSTs? Here’s a post I wrote about the best ones.

6. Auto-Tune Evo – (Windows)

Auto-Tune Evo by Antares Audio Technology has been released in February of 2018 and has been raising in popularity ever since then.

It’s got a great set of features such as pitch correction in real time, for live performances, vibrato controls and Humanize.

Auto-Tune Evo was created, like most auto tune plugins, with vocals in mind…

However, it works great with most monophonic instruments; e.g. bass.

It has two basic modes; Automatic and Graphical.

With Automatic Mode you give Auto-Tune some basic information about the track and that’s it, it will do the rest.

With the Graphical Mode you can go through the entire track manually and tell Auto-Tune exactly where it needs to apply some correction and how much.

While using the Graphical Mode might be a lot more work and definitely not for everyone, in my experience I’ve found that you get a much more transparent sound.

The common artifacts associated with tuning tend to be less noticeable.

Automatic Mode is excellent if you’re going for that T-Pain style of sound, or if you just want to quickly adjust a track…

While Graphical Mode, on the other hand, will definitely give you better results if you don’t want the effect to be as obvious and if you need to have more control over it.

It really comes down to what sound you’re going for and how much time and work you want to invest into it.

Regardless of what mode you’re going to be using, the first thing you’ll need to do is set up the “Input Type”.

The Input Type control gives Auto-Tune some information about the track that it’s going to work with…

The Input Types are; Soprano, Alto/Tenor, Low Male, Instrument and Bass Instrument.

Another feature is the Key and scale selection where you can tell Auto-Tune the precise key of the song.

Lastly, the Formants control will keep as much of the original characteristics of the vocals if switched on.

Auto-Tune Evo is just great, and it’s free…

If you want a versatile and good-sounding plugin which is good for both beginners and advanced producers, then definitely give it a try.

You can download it here.

Looking for free Drum VST plugins? Here are the best ones.

7. AutoTalent – (Linux)

If you’re a Linux user, then this one’s definitely for you!

Autotalent is an open-source and real-time pitch correction plugin which allows users to specify the notes that the singer should be hitting…

Autotalent will make sure that they do.

Not only can it correct the pitch but it can also be used to create such effects like the T-Pain effect.

This will make the vocals sound more like a chiptune.

Even though the interface looks extremely simple, this plugin is quite powerful…

You can use it for some light pitch correction or to achieve a full robotic auto-tune.

It includes all of the typical parameters as other auto-tune plugins such as; Formant shifting, selecting a scale or notes for the plugin to use or to exclude, and more.

However, it provides one feature that most auto-tune plugins don’t… The Vibrato section.

This section can help you add some vibrato to the vocals to give it a more natural sound.

All in all, Autotalent is an extremely useful and complete auto-tune plugin, plus it’s for Linux users who have a lot fewer alternatives when it comes to plugins and music production software.

You can download it here.

8. Voloco – (Windows, Mac)

If you’re looking for an Auto-Tuner that is capable of slight- and in-depth correction, then Voloco might not be the right one for you.

It’s designed to be used as a creative tool, which is why you only get access to 6 presets that you can’t even edit and that’s it.

Each of these presets affects the audio in a slightly different way.

However, they are all optimized to achieve the “T-Pain” auto-tuned vocals.

Naturally, since it doesn’t feature any more controls than changing the presets, setting the Key and adjusting how much correction you want, Voloco is extremely easy to use.

The interface is super clean and easy to understand which, if you’re new to auto-tuners, is great news.

Voloco is a fun plugin to have, especially for coming up with new ideas, but it’s not the most in-depth auto-tuner.

Still, I find it easy to recommend!

Lastly, you can also download a mobile version for your phone that you can use to sing over other songs you have on your device and Voloco will adjust your voice to the song’s key.

You can download it here.

Top 3 Choices

Out of all the Auto-Tune plugins on this list I’d have to say that Graillon2, GSnap and Auto-Tune Evo are my top recommendations.

They offer a lot of features, they sound great, and they give you more control over the track itself than most other plugins.

Learn how to use AutoTune properly

Even though there’s nothing wrong with learning how to use this kind of software all on your own, learning from someone can be quite useful as well.

Here’s a course about vocal music production where they also teach you how to use Autotune, Vocoders, etc.


Quality software doesn’t necessarily need to come at a premium price…

All of the plugins on this list are more than capable of delivering excellent pitch-correction while still offering other features…

And all of this completely for free…

Since they are free, I’d recommend you try them all out and choose the one that suits your needs the most.

I hope this information was useful!

Have a great day!

Frequently Asked Questions

Is autotune Evo free?

The Auto-Tune Evo VST demo is available to all software users as a free download with potential restrictions compared with the full version.

Can autotune be used live?

Yes, with the progression of vocal technology, companies like TC Helicon, ART and Boss have developed several Live Autotune & Pitch Correction Vocal Processors that work essentially like foot-pedals used on stage to turn on/off autotune.

Does Auto Tune change your voice?

Autotune corrects the pitch of your voice, essentially making you sound better and on key.

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