Best Free Parametric Equalizer VST Plugins!


Free parametric equalizer VST plugins!

In this latest addition to our VST Plugin Directory, I’ve tried covering the best freeware parametric equalizer VST plugins. In case your favorite free parametric EQ isn’t included in the list, please suggest it in the comments section below.

Note that there is a separate article covering freeware graphic equalizer VST plugins. If you’d like to learn more about different types of equalizers check out this great article by Ethan Winer. And here’s my favorite tutorial covering the subject of equalization in digital audio. OK, on to the freebies now!

Follow the links for more info:

My favorite three picks from the list would be SonEQ for creative purposes, ReaEQ for high precision tasks, and EasyQ for all-around use. I also like BootEQ a lot, it’s great for coloring, and IIEQ which is another fantastic plugin and slowly becoming my next go-to EQ.

SonEQ, a freeware parametric equalizer VST by Sonimus.
SonEQ is a fantastic freeware equalizer developed by Sonimus. I use it all the time for subtle sound enhancements, as well as for cleaning the low end of individual tracks with its fantastic low pass filter section. One of the finest freeware equalizers out there, highly recommended for use on bass guitars and kick drums.
SlickEQ by Variety Of Sounds & TDR.
SlickEQ is the latest addition to this list. It was released by the indie developer superstar team consisting of Tokyo Dawn Labs and Variety Of Sound, along with Vladislav Goncharov (the man behind Limiter6). SlickEQ is a highly flexible EQ which can quickly transform between being surgically clean and extremely vintage sounding.

Hopefully, you’ve enjoyed the article and added some useful new EQ plugins for your home studio. Leave your thoughts in the comments section below and support BPB by sharing links to this article on your blog, social networks, or your favorite forums. Happy mixing!

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About Author

Tomislav is a musician and a blogger. He writes about free and affordable music production tools on a daily basis here at Bedroom Producers Blog.


  1. IIEQ is my all purpose EQ for everyday tasks. Amazing plugin! Also, SonEQ is great for that extra low end on kicks and basses.

  2. Electric-Q, despite of being theoretically the best, is actually the buggiest vst I’ve ever used in my life, so buggy it gave me eternal nightmares. Like the piece of shit would automatically reset itself in every damn project I’ve used it in, after reloading that project, regardless of everything.

    I dunno, perhaps the problem could of been related to something else, but it’s the only vst that has ever pulled that type of horror on me, ever.

    I had to uninstall it.

    • Exactly same experience with me.
      Pity, as I felt it sounded superior to most of the others. But after tweaking for hours around a mix and having reset everything when I reloaded the project, I got really mad…

      • Electri-Q sounds decent but come on..SonEQ and Slick EQ sound amazing. To me electri-Q is buggy and outdated compared to the best new free EQ’s.

        As a reaper user i can tell you that the best surgical EQ for free is Melda MEQ not ReaEQ and its not even close. Meq sounds great and is amazingly full featured for a freebie. Removing mud and resonances has never been faster or easier.

  3. Was once young and an electronics engineer.
    Now old, retired, and hearing is getting harder.
    Audiogram starts dropping off at 4khz, down 70db at 6khz, back up around 8khz. Sort of a “built-in” notch filter.
    Just starting to research EQs for Audacity that may be more useful than Windows/Realtec builtin EQ.
    Any suggestions for listening at home? There seem to be so many.

    • Bedroom Producers Blog on

      Hi Pat! If I understand correctly, you need something just for listening at home and not for producing music. If that’s so, how about using a player such as foobar2000 and boosting the 6 kHz region with the built-in equalizer? Would that work?

  4. Hi all,
    I am constantly re-trying the different EQ’s and other tricks in my at-home “monkey” mastering. :)
    I use RESCUEmk for mid/side and SlickSQ “mastering1” or “Freshmaker” as a starting point on general rock/pop music. I learned this after trying all the VOS EQ’s (which are great) and IIEQ, GEQ and others (that are all great),
    I just found this combination saves alot of time in mastering. just my 2 cents worth

  5. since you likethe SONeq best , I just gave it a shot. Its really good. You can really tweak the middle which can help if what you are mastering has a problem. With the VOS stuff, most of it is too complicated for me, but the presets are very good. a pro probably wouldn’t be taking presets, but hey, it works. I will be testing SONeq and RescueMK on this new CD I am doing for friends. I really like the control. If you are mixing for older people who are losing their hearing, just choose the drum mix on SONeq. :). “crisp”. :) :) Or people listening on 1960’s era Acoustic Research speakers. :) :). I have a friend with tinnitus. Maybe a special mix for him. :) :)

  6. Hi, thanks for the post.

    I wonder if you could suggest me something which could work on Foobar 2000 (ElectriQ is a NIGHTMARE, it crashes all the time) and which would allow me to see if there are peaks, possibly also where the peaks are (bass, mids, highs), with a general gain and one for each of the three regions. AND, it would be cool if it would have something like the Automatic Gain protection of Neutron. If you do not know it, it analyses the music on the fly and if there is a peak it decreases the gain a bit. It does not do dynamic normalization it does not keep each second the loudest peak at 0 (I would not want that, I prefer Replay Gain). But in case that you have pushed the EQ too hard or that Replay Gain lets some peaks pass, the AGP would lower the gain and leave it like that till the end of the song. With the next song it would be reset.
    This would allow me to push things more in Foobar.
    My situation is that I love BT Headphones, I only use them to listen to music. I have compared 40, it is a passion, I have even opened a “huge comparison” thread in Head-Fi.
    But they do not get as loud as wired cans.
    I also am a bit basshead (although an “audiophile basshead”). So I tend to push bass, using EQ and the wonderful “Real bass Exciter” plugin for Foobar.
    It generally goes all well, but there are some tracks from time to time which gives problems and I do not want to decrease the general gain just for a few tracks, as I need each drop of loudness I can get from my setup.
    The advanced limiter does not do anything at all.
    So, a sort of AGP like in Neutron would be the best.
    Do you know of any EQ (preferably parametric) which can do that? Or another extra tool? For Foobar?

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