Mastering Compressors Vst Free
It’s remarkable that Izotope is offering this plugin for free. The Ozone imager is born from the Ozone 8 mastering software. If you want control over how wide or narrow your mix is, the Ozone. Mastering grade adaptive, free-form and graphic equalization. Voxengo Polysquasher is a mastering compressor AU and VST plugin for professional audio and sound production applications. Polysquasher was designed with a main goal: to be transparent. Transparent compression action is a cornerstone for any mastering compressor.
You may face several scenarios while mixing and mastering which may include the use of an equalizer, having a transparent display to analyze what you are adding or subtracting with the EQ, multiple EQ bands, and proper CPU usage is what to look for in an EQ.
But with that said every piece of software and hardware alike creates and outputs a slightly different sound meaning they all have unique timbres and uses. Alongside that, there are some rather expensive plugins we may see online, which aren’t out of our reaches but we don’t know what we need until we need it right? Well, this is why its best to try some free EQ’s first to see what it is you like within an EQ and what it maybe you are looking for.
We become ever so comfortable with our stock plugins, they do the simple tasks for us (sometimes), they don’t run our computer into the ground, and they for sure are pretty basic. Well, this is the issue most people come to, they want a better EQ, or they want a change of visuals.
EQ History – ‘The first EQ was first used by John Volkman working at RCA in the 1920s”
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17 Best Free EQ VST Plugins In 2020 For Mixing And Mastering
- DDMF Colour EQ info & download
- SPL Free Ranger info & download
- Analog Obsession STEQ v2 info & download
- TDR Nova Parallel Dynamic Equalizer info & download
- Cockos ReaEQ info & download
- Blue Cat’s Triple EQ info & download
- Analog Obsession Merica info & download
- TinyQ lkjb info & download
- Sonimus SonEQ info & download
- Ignite Amps PTEq-X info & download
- Leftover Lasagne Pushtec 5+1A EQ info & download
- lkjb QRange info & download
- TDR Slick EQ info & download
- Manda Audio 7Q info & download
- Mellowmuse EQ1A info & download
- Voxengo Marvel GEQ info & download
- Kuassa BASIQ info & download
1. DDMF Colour EQ Review
More Info & Download
Specifications:
- 64-bit processing
- Low-CPU Usage
- Customizable GUI
- Great warm sound
- 5 Bands
- Resizable Window
Features & When To Use:
Colour EQ is a 64-bit EQ plugin that offers 5 ”super parametric” bands to manipulate the frequency range. This is exceedingly handy when wanting to use more than one band in one instance; the intuitive gain knobs on the five bands allow for perfect mixing of these bands when mixing and mastering.
Using the two different types of curves, Colour EQ offers a warm sound that you just wouldn’t get from your stock EQ.
Having a bright visual display helps you to craft and mould your bands to preference.
A great way to use this plugin is when you are not getting enough warmth in your low, mid/mids, Colour EQ will add a great sense of warmth throughout the selected bands. Another cool way to use this plugin is to use two different setups with two different curve types; you can use modified versions of the EQ for selected times in your mixdowns to add the feeling of a change in energy in a breakdown or drop.
Colour EQ is a great tool to have in your arsenal for mixing and mastering, plus you may find many uses in your day-to-day production.
Compatibility:
Windows VST (32/64 bit), Windows/Mac RTAS, and Mac VST/AU format (Intel, OSX 10.5 and higher)
2. SPL Free Ranger Review
More Info & Download
Specifications:
- Four useful bands
- Volume knob
- Great sound
- Four buttons to switch between EQ settings
Features & When To Use:
With a sleek, minimalistic design Free Ranger is a powerful EQ.
With a mid-band (150Hz – 7kHz), fixed high (10kHz), low shelf (80Hz) SPL have kept things very simple so anyone can EQ with ease.
Free Ranger gives the feel of the world-renowned API 560 EQ but offers this all for free!
Free Ranger is a bodybuilder for your sounds while mixing and a gentle touch when mastering, this plugin makes EQing fun, quick and easy.
You may find yourself using the four different EQ settings and incorporate them into your mixdowns. Using them to create different feels and vibes can give your masters that final touch you’ve been looking for.
This is a must-have!
Compatibility:
macOS 10.9 through 10.15, Windows 7-10
3. Analog Obsession STEQ v2 Review
More Info & Download
Specifications:
- mid-band (150Hz – 7kHz)
- fixed high (10kHz)
- low shelf (80Hz)
- Optical compressor knob
- Added preamp
Features & When To Use:
Simplicity is key with EQ work in the mix or master, and this plugin keeps that in mind through and through.
With a very easy to use GUI STEQ 2 has a powerful but simple way of delivering a small form factor EQ to your DAW.
This EQ gives off old school retro vibe, precise, clean, and adds a lot of detail to the mid-range.
STEQ 2 is excellent for tonal rebalancing due to the broadness of the three bands creating a pure blend between the frequency ranges.
Using this to add punch to claps and snares is also a good use. But be careful when adding to full bus groups.
This EQ from Analog Obsession is an excellent tool to keep at your disposal when thinking about doing some tasks during your mix, or why not change up those stock plugins for free.
Compatibility
WiN, OSX AU VST, VST3
4. TDR Nova Parallel Dynamic Equalizer Review
More Info & Download
Specifications:
Great for:
Features & When To Use:
Nova is a parallel dynamic EQ; each band has a dedicated, dynamic section giving the user full flexibility.
Giving the option to drag and move bands in the visual GUI individually or group, this provides a natural form factor way to get results.
Using the multiband compression built into Nova your be able to manipulate your EQ even further, this will be displayed in the visual GUI with real-time feedback of the compression process. (subtly decrease the threshold to hear the difference)
In mix and mastering, you can use Nova to visually see where you may have audio issues to fix and makes it very easy to apply these changes with the drag and change feature.
The dynamic EQ is a handy tool to have in practice when mixing down full compositions – use it to bring down or up frequencies only when they reach a specific volume.
Nova is a heavyweight EQ with a lot under the hood all for free!
Compatibility:
Win XP SP2 or above, Mac OS X 10.7 or above.
5. Cockos ReaEQ Review
More Info & Download
Specifications:
- Low CPU & RAM
- Fast and highly configurable
- Portable – copy & run
- Resizeable GUI
Best Compressor Vst
Features & When To Use:
ReaEQ may look basic, but under the hood, there is a lot to offer.
Being able to have as many bands as you wish is a massive bonus, you also have the ability to change all of these bands to one of the following (shelves, bands, LPF, HPF, notch, bandpass, allpass).
With a stripped-back GUI, it keeps you focused on the task at hand, not over complicating things but giving you the power of an audio god at your fingertips.
With a tremendous real-time visual display, this gives you the eyes and ear focus that you need when EQ in the mix.
Phasing is a big issue when mixing, ReaEQ gives you a ‘Show Phase’ button which will show you in your display what frequencies are being affected by the band.
When mastering you may wish to keep all bands in one EQ patch, with ReaEQ you can do this.
Stripped back and powerful ReaEQ is a favorite among many producers across a wide range of genres.
Compatibility:
WIN 32, WIN 64
6. Blue Cat’s Triple EQ Review
More Info & Download
Specifications:
- Semi-parametric EQ
- +/- 40dB Range per band
- MIDI control and automation support
- Real-time display
- All sample rates supported
Features & When To Use:
The Triple EQ is a three-band semi-parametric equaliser.
With a simple and easy to read visual display of the frequencies in real-time, you will have a clear display of the EQ in front of your eyes.
Alongside the huge +/- 40 dB range, Triple EQ has a bandwidth of .01 to 5 Octaves!
An exciting feature with Triple EQ is that you can link two bands together using the ‘Link Channels’ feature. This will allow you to use them in unison; combine this with the automaton support to create quick and easy modulation. This is a great way to change an EQ while in the mix with complex automation.
Using the linking feature to create movement and progression within your mixdowns makes Triple EQ a threat.
Fully customisable shapes make this a different tool when deep in the mix or master, you will find many uses for the dynamic bands you can create—having dynamic bands that you are able to manipulate helps when visually your EQ and how it may affect the whole frequency range.
Check this one out for a small form factor powerful EQ!
Compatibility:
Windows 7 to 10, Mac OS 10.7 or newer.
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7. Analog Obsession Merica Review
More Info & Download
Specifications:
- Low & High Band – Shelf
- Mid Band – Proportional Q Peak
- HP & LP Filter – Constant
- Low CPU usage
Features & When To Use:
We have another FREE plugin from Analog Obsession!
This time is bringing you Merica an emulation of the API 550A console equaliser.
A simple three-band EQ delivers a lot of power to your mixes and masters. Selectively choose which frequency your band boosts or cuts with the option to the right of the knobs.
All bands kept simple and easy to get to grips with.
Meica also has a nifty and very much needed output knob, there will be no issues with clipping in the digital domain when mastering with this plugin.
A larger than appearing sound Merica is an excellent EQ plugin to use when in the mixdowns and masters.
Given that the EQ it emulates is an industry-standard plugin this small form, powerful, easy to use, and was coded by one man! Merica is a must grab for all audio creatives looking to upgrade their stock EQ plugins.
Compatibility:
VST Win, VST3 Win, VST Mac, VST3 Mac, AU Mac
8. TinyQ lkjb Review
More Info & Download
Specifications:
- Four bands (20 Hz to 20 kHz)
- Small form factor (ability to make larger if wanted)
- High & Low cuts range is 6 and 48 dB/octave
- Included frequency analyser
Features & When To Use:
TinyQ is a small form factor EQ.
Giving the user a stripped-back interface TinyQ offers a solution to a simple job.
Having too many settings can become overwhelming; TinyQ does what it says on the tin and doesn’t make your job any harder.
Keeping things simple when mixing down whole groups is essential – finding yourself using CPU heavy EQ, or a stock plugin just might not cut it for you. TinyEQ is excellent for doing those necessary but straightforward EQ tasks!
With the recent addition of built-in frequency analyzer, it makes EQ even easier when getting stuck into your mixes or masters.
Create awesome sounding band curves.
Great emphasis on keeping things simple goes a long way with TinyQ; the team has made a great EQ that does everything it needs to in one small package. With four bands plus high pass/low pass filters, you won’t be looking any further for your day to day EQ needs.
Compatibility:
Windows 7 or later, macOS 10.7 or later (both 64 bit)
9. Sonimus SonEQ Review
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- Three-band Equalizer, Low, Mid, High.
- 2 Musical Filters, High-Pass Low-Pass.
- Preamp stage with a bass booster.
- 64-bit floating-point precision.
- Up to 192kHz sample rates supported.
Features & When To Use:
SonEQ has 3 bands, low (20 Hz – 100 Hz), mid (150 Hz – 4 kHz), high (6 kHz – 15 kHz). Combined with a high pass and low pass filter, plus a ‘Mid-high Q’ this means when it’s on your band its narrow and when deactivated will cause it to be wider. This indicated by the red light.
Giving the user a lot of ways to EQ but keeping things user-friendly is what SonEQ does best.
Having the volume meter is very hand when mixing with any EQ, it gives the visual display of when things are getting a bit heated for your output.
SonEQ also gives you the full control of your input and output levels. This comes in handy when you are mixing your tracks with heavy effects, causing the overall levels to become louder than 0.0dB; this is where adjusting both the input and output parameters will solve the issue.
With this plugin being free for all to use we don’t see any reason why this shouldn’t be ready to deploy at the click of a finger, whether it’s beefing up the mix with the built-in bass boost preamp staging or adding a touch of colour to the highs this plugin has you covered.
Compatibility:
Mac OSX 10.6 or newer – Windows XP or newer
10. Ignite Amps PTEq-X Review
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Specifications:
- Three equalisation modules
- Stereo/Mono switching
- Four different tube types
- Global input/output level control
Features & When To Use:
PTEq-X is a digital emulation of three famous vintage EQ.
Equipped with three EQ modules comprised of mid-range (2kHZ – 7 kHz), low-frequency (20Hz – 150Hz), high-frequency (3kHz – 16kHz).
Using the mid-range module, you can use the low, mid parameter (top left) to effect the lower mid frequencies. Alternatively use the high mid setting (top right) to cause-effect to these frequencies.
Moving down the EQ, we have our second module, which is PEQ1A EQ (Low & High). This comes with a bunch of parameters to mould your EQ patches perfectly to your source.
Finally, this is all topped off with the HL3C module; this is a low-cut accompanied by a high-cut.
You can also use the ‘Oversampling’ feature to reduce aliasing.
Use the “Tube” switch to apply or deactivate the tube amp.
Using the input and output levels will give you the ability to control any nasty peaks brought in or out of the EQ.
PTEq-X is a combination of some of the best analogue EQ’s to exist, plus its FREE!! We recommend this one for a great addition to your EQ arsenal.
Compatibility:
Windows 7 – 10 32 and 64 bit. OS X 10.7 64 bit
11. Leftover Lasagne Pushtec 5+1A EQ Review
More Info & Download
Specifications:
- 6 Band mid-range EQ
- Presets built-in
- Algorithms based on famous analogue gear
- Designed for mixing and mastering
Features & When To Use:
Pushtec 5+1A is a versatile mid-range program EQ that has mixing and mastering at its heart.
This plugin offers six bands, all offering a fantastic sounding boost through all parameters.
A vast selection of plugins makes it easy for users to start with something super effective and tweak to their liking.
“B/W” stands for bandwidth, this allows you to tweak the selected band and adjust to your preference.
A friendly and straightforward GUI keeps this EQ a smaller form factor but with a lot of power. Being designed for mixing and mastering be assured that this plugin delivers best when applied to a whole group or a master channel.
Giving instant sparkle to a mix or a very much needed bass boost this FREE plugin has you covered!
Compatibility:
Win 7 or higher only
12. lkjb QRange Review
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Specifications:
- 12 bands
- peak, shelf and cut filter
- Cut filters (12, 24 and 48 dB/oct steepness)
- Stereo/Left/Right/Mid/Side routing for each band
- A global gain for loudness adjustments
- Resizable GUI
Features & When To Use:
QRange is a very straight forward, user friendly, and effective EQ for mixing and mastering.
Giving the user an intuitive click and drag feature makes EQ work easy and more controllable.
With a choice of twelve bands, there is excellent room for doing additive plus subtractive EQ all in one plugin patch. Each band has. Selection of up to five different types (peak, low-shelf, high-shelf, low cut, and high cut).
Built into the frequency spectrum, you have the power to change it to pre or post. ‘Pre’ will let you see what the frequency range looks likes before the EQ is applied, whereas ‘Post’ will allow you to see it after the EQ has taken effect.
Offering the ability to users to save and load their own presets makes it easy to bring back some of your favourite patches while working on a mix or master.
It has to be said lkjb QRange is a must-have FREE EQ plugin.
Compatibility:
Win 7 or higher, macOS 10.7 or higher
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13. TDR Slick EQ Review
More Info & Download
Specifications:
- Semiparametric EQ layout
- Three bands combined with 18dB/Oct high-pass filter
- Four EQ models: “American”, “British”, “German” and “Soviet” with optional non-linearity
- Five output stages: “Linear”, “Silky”, “Mellow”, “Deep” and “Toasted”
- Saturation algorithms by VoS (“Stateful saturation”)
Features & When To Use:
TDR’s Slick EQ provides a recognizable analogue sound.
Using three bands that bring together four different EQ models.
Both low and high bands are coupled with a cut and bell feature allowing for comfortable band changing.
Auto gain estimates the gain change caused by the current EQ settings; this makes it great to compare your EQ setting during the mix. There is also an ‘EQ Sat’ button; this will activate the saturator which is very intelligently paired to your EQ bands. This will add harmonics when boosting and remain passive when cutting.
Being able to save your favourite EQ settings for a later mix or master can be done within the plugin. Coupled with a undo/redo button you never miss that sweet spot for your bands, alternatively set up two different EQs with the A/B switch.
Slick EQ gives a very stripped back interface meaning you don’t get caught up with the visuals when doing equalising, providing a focus on what your hearing. This EQ shouldn’t be overlooked, with great coding, algorithms, settings, and excellent sounding types SlickEQ delivers more than you would expect from a FREE plugin.
Compatibility:
Win 32 bit VST2, VST3, Win 64bit VST2, VST3, AAX
Mac VST2, VST3, AU, AAX 64 bit
14. Manda Audio 7Q Review
More Info & Download
Specifications:
- Seven band EQ
- Highpass/lowpass
- Stereo/mono options
- Left/right options
- Output level
Features & When To Use:
Manda Audio brings us 7Q.
7Q is an emulation of the beloved ‘Classic EQ’ which became discontinued, the team came together and brought the community back a redesigned version.
7Q takes off all the fancy parts and gives you the bare basics; this is what gives this a place on our list. With 7Q giving you the ability to apply your EQ to the left or right or both channels, you can independently EQ both sides of the stereo field.
Each band can be additive or subtractive. Keeping easy to use format is what this plugin does best; it doesn’t over-complicate the task at hand but assists your needs along the way wether mix or master.
Low memory and CPU usage make it easy to have multiple instances in your projects without having your computer meltdown.
7Q is a nifty EQ that is awesome for giving your sounds a little crisp boost before running into your other plugins within the chain.
Compatibility:
Win VST 32/64 bit, AAX 32/64 bit
Mac VST, AU, AAX
15. Mellowmuse EQ1A Review
More Info & Download
Specifications:
- HP: 10hz – 1khz / sweepable Q
- Low Shelf: 30hz – 500hz
- Low Mid: 70hz – 2khz / sweepable Q
- High Mid: 500hz – 6k / sweepable Q
- High Shelf: 1.5k – 18k
- Phase switch
- Output level
- 64-bit internal processing
- Formats: 64bit VST, VST3, AU and AAX
- Version: 3.2
- Legacy 32bit installers
Features & When To Use:
EQ1A is a FREE analog-style EQ with a clever algorithm giving you minimal phase coloration.
This plugin has initially been paid to use the plugin, but the developers have decided to give it to us all for FREE!
EQ1A allows you to use broad bands to shape your sounds or outputs in a clean, crisp and phase-corrected way.
Being able to save you presets within the plugin makes it very easy to pull back that EQ you made on the last mix. 4-band parametric equalizer with an additional HP filter with variable resonance gives a wide range of settings to play with while keeping everything simple and user friendly.
EQ1A does what it says on the tin for FREE!
Using this within mixing or mastering may help you when wanting to add a hefty highpass or when looking to give some warmth to your mid ranges.
It has to be said with a great look, and low CPU usage EQ1A is an excellent addition to your plugins.
Compatibility:
Win, Mac
16. Voxengo Marvel GEQ Review
More Info & Download
Specifications:
- 16-band graphic equalizing
- +/- 12 dB gain range per band
- Channel grouping
- Preset manager
- Contextual hint messages
- Freehand drawing mode
- Stereo and multi-channel processing
- Mid/side processing
- Undo/redo history
- All sample rates support
- Linear-phase equalizing
- Internal channel routing
- 64-bit floating-point processing
Features & When To Use:
Voxengo is notorious for doing some excellent free plugins.
This addition is the Marvel GEQ, which is a fifteen band linear phase EQ.
There is a routing tab that allows you to affect the signals mid/sides independently. (orange slides)
Also giving full independence to the mid/side output level, becoming very useful when mixing and mastering.
Bypass feature makes it simple to hear what your EQ is doing to your sound source. Alternatively, decide between two EQ setups with the A/B mode.
For quick EQ drawing, you can hold ‘Ctrl or Cmd’ and click across the EQ drawing in your fader settings with the click of a mouse.
Having a stripped back form factor with enough controls to complement your mixing tasks this plugin has to be our list today.
Compatibility:
VST Win, VST3 Win, VST Mac, VST3 Mac, AU Mac
17. Kuassa BASIQ Review
More Info & Download
Specifications:
- Three-band EQ
- High, mid, low
- Presets tab
- Output level
- Very simple to use
Features & When To Use:
BASIQ is a three-band EQ.
It keeps in mind that EQ work for mixing and mastering doesn’t have to be a headache or over complicated.
BASIQ is a design similar to the classic ‘Baxandall Equalizer’ which is knowns for its natural-sounding shelves and HiFi quality responses.
Adding a smooth, gradual shimmer or warmth instead of a surgical sharpness is what BASIQ does best. Use on groups or a master chain to subtly but significantly add character with the turn of a knob.
With some added presets you be able to get a quick change in tone with the click of a button.
The small form factor makes this BASIQ a powerful tool to be used within the mix or master.
Compatibility:
Win, Mac, VST, AU, 64 bit
Our Picks For Top 3 Free EQ VST Plugins
With all of that said, grabbing all 17 plugins wouldn’t do you any harm, but we want to break down our top 3 picks!
1. DDMF Colour EQ Review
In our top spot, we have Colour EQ by DDMF.
This plugin brings so many features that you would expect from pay to use plugins but all for FREE! Another fresh point is that the curves you can create with this cannot be done on other EQ plugins, giving Colour EQ a versatile approach.
Low-CPU – Usage Customisable GUI – Great warm sound – 5 Bands
2. TDR Nova Parallel Dynamic Equalizer
Coming in second is Nova by TDR.
Parametric, dynamic EQ, and multiband compression are all built into an excellent looking FREE plugin.
Nova has a built-in dynamic EQ parameter when mixing, and mastering using a dynamic EQ is crucial sometimes. Having this all in one plugin for free is hugely commendable to the team who developed this plugin!
Parametric equalization – Dynamic equalization – Frequency selective compression – Multi-band compression – Wideband compression
3. Blue Cat’s Triple
And finally, our last top pick is ‘Triple’ by Blue Cat.
This awesome plugin has so many features you just wouldn’t expect a FREE plugin to have.
With a fresh interface and drag and click feature to make EQing even more natural Triple is a powerful EQ.
Semi-parametric EQ – +/- 40dB Range per band – MIDI control and automation support – Real-time display
Today we have covered a lot of great FREE EQs for mixing and mastering. Amazingly, we have developers putting out all of these plugins for producers/sound engineers to level out the playing field. As we have all seen these ‘not to name’ brands releasing rather expensive EQs that we just can’t fork out for, but with the way, music has progressed today in the digital domain it has become much more accessible for creatives to share their ideas and effects for free.
With that said, they all have their benefits and downsides, but with them all being free, there is no reason you can’t pick them up and use these in your mixes or masters today!
BEST FREE VST COMPRESSORS
FREE VST COMPRESSOR PLUGINS
Below you will find a list of free compressors with links to the respective download sites. If you scroll down further you will find descriptions of the listed compressor vst plugins.
The vst plugins mentioned may be working either on PC or Mac or on both and a few are 32-bit only. However, by the use of a bit bridge and / or a plugin-adaptor (like jBridge, 32 lives, DDMF Bridgewize or Blue Cat’s Patchwork) you should be able to use these vst plugins in almost any DAW. In Klangheim Studio we use Cubase in combination with jBridge and that works like a charm without any hickups. You can read more about bit bridging in our article About Bit Bridging
MCompressor by Melda Production
DC1A by Klanghelm
MJUC Jr. by Klanghelm
Molot by VladG
Tan by Acustica Audio
TDR Kotelnikov by Tokyo Dawn Records
RoughRider3 by Audio Damage
ReaComp by Cockos
SAFE Compressor by Semantic Audio
Leveling Tool by AdHd Audio Tools
jsCompShaper by JS Audio
FRComp87 by eaReckon
GComp by GVST
LA Thrillseeker by Variety of Sound (Windows)
Density mkiii by Variety of Sound (high quality buss and mastering compressor) (Windows)
Thrillseeker VBL by Variety of Sound (Vari-Mu compressor – this is primarily a saturation tool but it also has a simple compressor that works very well on bass) (Windows)
Nasty VCS by Variety of Sound (channelstrip with opto style compressor) (Windows)
Older vst compressor plugins – but good:
Bst drum vst plugin. Compressive Pro by Martin Eastwood (Windows)
FL4TT3RY 2 by platinumears (Windows)
Side Chain Compressor by slim slow slider (Windows)
Sidechain Compressor by Christian Budde (Windows)
dlm Sixtyfive by de la Mancha (Windows)
Kjaerhus Compressor by Kjaerhus (Windows)
Blockfish by Digital Fishphones
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MCompressor by Melda Production (Windows and Mac)
MCompressor is a very nice and very versatile vst compressor plugin. It has a good graphic user interface (GUI) that gives you good visual feedback about what you are doing both in terms of how you are compressing (soft knee, linear, or hard knee) and how much gain reduction you are employing.
You have full control over attack, release, ratio and threshold and you can target either the audio peaks or the average loudness (RMS) of the incoming signal – or set up the MCompressor to target the audio signal somewhere in between these two.
Mastering Compressors Vst Free Plugins
MCompressor also has a sidechain and a highpass and lowpass filter which makes it extraordinarily flexible. It comes with the Melda Free Bundle that includes quite a few other nice vst plugins. Highly recommended.
Download link: MCompressor
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DCA1 by Klanghelm (Windows and Mac)
The DC1A compressor from Klanghelm is a simple yet powerfull free VST compressor plugin. If you are a beginner this could be a good compressor to learn by since it is very easy to tweak plus you are forced to use your ears and not rely on numbers.
The DC1A is resembling an OPTO compressor. Its attack and release timings are program dependant although you have the choice between a faster response (which is the default mode) and a slower response with the ”relaxed” mode engaged. It has a fixed threshold and the more you gain the input the more compression you will get.
Use the output knob to match the compressed level to the uncompressed. This way you will not be fooled by differences in loudness between the unprocessed and the processed audio.
The DC1A can add a nice saturation effect to the audio. The saturation is stronger with higher gain reduction. You will have less saturation when the ”relaxed” mode is enabled. If you use it for just a few db of gain reduction in ”relaxed” mode it will work in a much more transparent way.
On stereo tracks you can compress the left and right side separately by enabling the ”dual mono” mode and Klanghelm has also given us an internal sidechain high pass filter which comes in handy when you want to keep the low end more intact (for instance on the drum bus). Finally you have the option of using negative compression ratios.
So, even though the DC1A looks simple at a first glance it is quite surprisingly versatile and can work well on many different types of audio material from drums and percussion to vocals, guitars, and keyboards. It is a very good sounding free VST compressor and should you want even more flexibility you should check out its ”big brother”, the DC8A, which is a high quality compressor with a lot of tweakability for just a little more than 20 US Dollars.
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MJUC jr by Klanghelm (Vari-Mu compressor) (Windows and Mac)
Yet another simple but powerful vst compressor plugin by Klanghelm. MJUC jr is a scaled down version of the amazing MJUC compressor plugin by Klanghelm. However, the MJUC jr still gives you a little of the flavour that you will find plenty of in its bigger sibling. Both plugins are emulations of the Vari-Mu compressors type and thus they add quite a bit of tube coloration / saturation.
With just a few controls – compress, make up gain, and a choice between three time constants (fast, slow, and auto) – the plugin is very easy to operate and you may be surprised about how much you can get out of this scaled down version. If you need more control and would enjoy playing with a lot of extra parameters you can buy the full version for very little money.
Download link: MJUC jr
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TDR Kotelnikov by Tokyo Dawn Records (Windows and Mac)
TDR Kotelnikov is a free VST compressor designed primarily for mastering purposes. It can function in a very transparent way and will definitely also find it’s use as a channel compressor or a group bus compressor.
The developers have added control features that you will not find on many compressors such as separate control over peak and RMS release values and a way to balance the importance and influence of each of these release times on the processing (through the peak crest knob and of course through the peak release knob and the RMS release knob).
You can also control the stereo sensitivity and chose whether the compressor should work on the full stereo audio or on the mid (”sum”) alone or the ”side” (”diff”) alone. If you want to dial in both mid and side compression and control these individually then you can simply use two instances of TDR Kotelnikov.
TDR Kotelnikov offers an internal sidechain function which gives you the option of relaxing the way the compressor responds to low end frequencies. There is also a mix option for parallel compression.
Timingwise the TDR Kotelnikov is capable of very fast settings. The attack time can be as low as 0.02 milliseconds and the release time can be as fast as 10 milliseconds for the peak release and 20 milliseconds for the RMS release. Of course you can choose slower settings as well since the attack time is fully adjustable up to 250 milliseconds and the release time likewise fully adjustable up to 2 seconds. All in all a very versatile tool for transparent compression.
TDR Kotelnikov is a fabulous free VST compressor plugin and it is amazing that you can get this quality for free. For mastering it is one of the best free vst compressors around. Highly recommended.
Should you want even more options there is a ”Gentleman’s Edition” at a very affordable price.
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Thrillseeker LA by Variety of Sound (Windows only)
This is definitely one of my favorite free VST compressors and probably the one free VST compressor that I use the most. The Thrillseeker LA is a very versatile compressor. In many ways it works like an OPTO compressor but although some people on the internet describe it as a free version of the LA-2A it is much more flexible than that.
Yes, indeed, the Thrillseeker LA can work very much like an LA-2A but you have many extra options on this Variety of Sound plugin. First of all you have faster attack times (both attack and release times are dependant on the incoming audio material – just as is the case with the LA-2A – but you can tweak and control the timing to some extend with the attack and release knobs).
This means that it is possible to tweak the Thrillseeker LA to work very much like a dbx 160 when it comes to timing – or a Tubetech CL-1B as well as a Fairchild or an LA-2A compresor.
Variety of Sound has also given us control over the total harmonic distortion (THD) with the interstage section. Once you have found the right amount of compression and adjusted the attack and release to your liking you can turn on the interstage section and add 2 order harmonics. If you want to go further than that you can use the slider to add even more THD and obtain thicker saturation effects.
Finally you have the ability to colour the saturation effect to your needs and even switch on a transformer circuit simulation to fatten up the sound even more.
Thrillseeker LA has internal and external sidechain options and in the top left corner you will find a little knob that calibrates the plugin to a conservative (and advisable) mix level of -18 db.
In other words Thrillseeker LA can work as a clean compressor or as a more vintage sounding unit. It can work with much faster attack times than an LA-2A and it has its own little colour tool box in the interstage section.
You can use it as a channel compressor or indeed as a bus compressor. And last but not least: it sounds amazingly good. It proves that free plugins can sound as good as commercial plugins – and be more innovative than most of them! That is just one good reason to dive into free VST compressors and other free VST plugins. Highly recommended.
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SAFE Compressor by Semantic Audio (Windows and Mac)
The SAFE Compressor is special in the sense that it allows you to type in more intuitive or descriptive terms or words into the plugins textbox – such as for instance bright, warm, punchy etc. – and if the word or term is on the developers server the compressor will be set to parameters that can bring forward the wanted and described effect.
You can save your own suggestions for semantic terms that represent a compression effect and it can then be shared with other users via the server. In other words SAFE Compressor is a unique intuitive compressor that may be of special interest to beginners.
Download link: SAFE Compressor
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Free Vocal Mastering Vst Plugins
FRComp87 by eaReckon (Windows and Mac)
FRComp87 is a delightfully simple vst compressor plugin. It only has a few controls: threshold, makeup gain, and three timings (fast, medium, and slow). Finally, you can switch in a limiter to tame peaks after the compression. Because of the simplicity FRComp is very fast to use and may be just the right starting point if you are a beginner when it comes to compression.
Download link: FRComp87
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dlm Sixtyfive by de la Mancha (Windows)
The developer de la Mancha has created a really good free VST compressor plugin inspired by the dbx 165 A compressor. However, de la Mancha’s Sixtyfive gives you several extra options compared to the hardware which inspired his work.
If you are looking for a dbx-style compressor plugin Sixtyfive is a good choice. It sounds very good and adds a little, nice coloration and character to the audio material you run through it.
De la Mancha has given you extra features like a dry/wet knob which makes it easy to dial in ”New York” or parallel compression. While the fastest attack on the original hardware is 1 millisecond de la Mancha lets you dial in even faster timings. Like the dbx 165 A de la Mancha’s Sixtyfive also has an auto attack and release button which activates a program dependant attack and release response. It also features a peak stop option for hard limiting on the final output.
Sixtyfive is a soft knee compressor. You can tweak it to give you smooth, musical compression or to work in much more agressive ways. So if you need a vintage style VCA compressor plugin with extra features you need look no further.
Free Mastering Vst Bundle
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GComp by GVST (Windows and Mac)
Mastering Compressor Vst Free
With the GComp vst compressor plugin you have full control over attack, release, threshold, hard knee or soft knee or anything in between as well as dialing in the balance between how the compressor should react to audio peaks versus RMS (the average loudness of the program material). On top of that it also includes a limiter.
You can adjust the input and output volume and GComp gives you a good visual feedback of what is going on and how much compression you are applying.
GComp has a sibling called GComp2 with a few different parameters that you could check out as well.
Download link: GComp