by Full Bucket Music
4.9 / 5     (27 votes)
Win32 Win64 OSX
ModulAir is a polyphonic modular synthesizer.

It is written in native C++ code for high performance and low CPU consumption.
  • Fully modular architecture.
  • Up to 18 modules per patch.
  • 57 module types available.
  • Polyphonic Voice and monophonic Master modules.
  • Up to 64 voices polyphony.
  • External signal processing possible.
  • Supports MTS-ESP by ODDSound dynamic micro-tuning.
  • TUN/SCL micro-tuning file import.
  • Resizable user interface (not "N" version!).
  • MIDI Learn – all parameters can be controlled by MIDI CC.
  • Plug-in supports Windows and macOS (32 bit and 64 bit).
Please support freeware development
Rexxia Feb 23 2024
Feb 23 2024
REAPER doesn't play nicely with this plugin. I can't change any of the modules or remove any. The drop-down menus show up but nothing happens when I click them.
Alex Nodrac Oct 29 2023
(5 / 5)
Oct 29 2023
Extraordinary ! The synthesizer that replaces almost all others. Just a difficulty which perhaps comes from my configuration (Ubuntu Studio + Wine + Carla): only the left channel appears in output. But even without the stereo, it's already incredible. Well done !
Gwugluud Feb 18 2023
(5 / 5)
Feb 18 2023
This is MUCH better than Voltage Modular. In my experience, trying to alter a patch or create your own results in vague sounds and endless howling which won't stop until you power your PC off. This doesn't behave like that.
Bernhard Feb 17 2022
(5 / 5)
Feb 17 2022
Vielen Dank für dieses großartige Werk! Eigentlich wollte ich mir damit nur einen Korg MS-20 nachbauen, aber schnell merkte ich, dass die Möglichkeiten sogar einen Yamaka CS-80 übertreffen. Der Modulair wird den Klang meiner zukünftigen Produktionen prägend mitgestalten. (Für die Handhabung hätte ich noch ein paar kleine Vorschläge. Bitte antworte hier kurz, ob du interesiert bist.)
Dr Tonka Feb 04 2022
(5 / 5)
Feb 04 2022
This is a fabulous entry to modular synthesis. Much easier than VCV. It doesn't have the jillions of components that VCV has or the unlimited rack space, but you can get some great sounds out of it, and programming it does not induce a migraine. When someone wonders if they want to do Modular, I send them to this to get their feet wet and not spend a jillion dollars on boxes. See if they like this workflow. Great for students and pros alike.
offthesky Oct 15 2021
(4 / 5)
Oct 15 2021
This I place 3rd place of all the fully modular options on this site. Best is Sonigen, then 2nd Kamiooka. All 3 are very worth having. This one sounds the most digital of all 3. It had a decent number of presets. Like Kamiooka, I wish it gave you more module slots.
Dogday Dec 26 2020
(5 / 5)
Dec 26 2020
Used this one for ages, it's great. As modular VSTs go, it's pretty simple to use once you remember to route everything to the right place. Polyphonic also, sounds really fat! Check Full Bucket's website also, there LOADS of other stuff there too.
Full Bucket Dec 18 2020
Dec 18 2020
the v1.2.0 Mac PKG had a problem with AUs. Plz get the latest PKG from my website. Cheers
g rees Sep 17 2020
(5 / 5)
Sep 17 2020
I learned alot, thanks.
morsik Apr 17 2020
Apr 17 2020
Can you repair MIDI CC 120 bug?
Full Bucket Dec 17 2020
Dec 17 2020
Should be fixed now with v1.2.0.
Baby Love 54 Mar 15 2020
Mar 15 2020
It's very nice, Thanx
Erisian Mar 15 2020
(5 / 5)
Mar 15 2020
I've got myself a new favourite synth! It sounds like perfection - especially the string machine preset. I'm totally hooked and all my other synths will now take a back seat. Thank you FB for this gem.
sad Feb 20 2020
Feb 20 2020
Full Bucket Mar 04 2020
Mar 04 2020
It does. Follow the installation instructions in the manual.
Digital Rules Oct 27 2019
(5 / 5)
Oct 27 2019
Very good and capable modular synth!
Anonymous Oct 23 2019
(5 / 5)
Oct 23 2019
Honestly, this plugin is great. Great performance, easy patch loading, easy to use, very versatile...
AzZzX May 07 2019
(5 / 5)
May 07 2019
Really Good:)
Foxtrot Jan 29 2019
(5 / 5)
Jan 29 2019
I have downloaded the beta version... really good !!! :) thank you N N N ninety three !
N-N-N-Ninety-Three Dec 16 2018
Dec 16 2018
Just to advise there's a newer beta version of this ace modular synth on Full Bucket's website and it has effects such as delay and reverb, no mean feat on a modular polysynth. Thank you very much Full Bucket, you're a star.
Zak Nov 10 2018
(5 / 5)
Nov 10 2018
Full Bucket strikes again. Their beta version synth is more stable than quite a few commercial plugins I own. The sound quality is great and his own take on modular synthesis is really smart.
AM Oct 29 2018
(5 / 5)
Oct 29 2018
Wow, this is a great modular freebie! I can only imagine which new modules will be added along the way! <3 Delay/echo and reverb effects/modules would be very much appreciated and useful! <=)
Proteus Oct 10 2018
(5 / 5)
Oct 10 2018
Amazing quality synth! This could easily be a commercial plugin.
L@zarus Sept 14 2018
(5 / 5)
Sept 14 2018
Another awesome synth from Full Bucket Music, very easy and logic... ok, it's currently still in the Beta-Phase but until now a great pleasure to work with! Thx Guys, go on ;-))
eg571212 Sept 13 2018
(5 / 5)
Sept 13 2018
Full Bucket has done it again ! Another great synth.
Mato Sept 06 2018
(5 / 5)
Sept 06 2018
Phenomenal freebie modular synth! Other developers would charge big money for this! Thanks heaps Full Bucket Music!!!! <3<3<3
Phosfine Aug 26 2018
Aug 26 2018
This is amazing! I love to see what type of things one person can make. What software did you make this with? Is it all hard coded, or is there some magic software that lets you skip a few steps? Either way, great job!!
Full Bucket Sept 14 2018
Sept 14 2018
Thank you! All my plug-ins are hard coded in C++ and use the WDL-OL/IPlug C++ framework.
Mato Mar 12 2019
Mar 12 2019
Hello, Mister Full Bucket Music! May I ask You if You checked out the new IPlug 2 framework developed by Oli Larkin? It has many improvements and resizable GUI features. It could be useful for You. Thank You very much for all of Your phenomenal plugins! :)
Mickey Module Aug 24 2018
(5 / 5)
Aug 24 2018
Another excellent Full Bucket synth. Still in beta but works fine. Build your own Eurorack! Has wavetable support to use samples as oscillators. Hey Full Bucket, if it's still in beta, can you add an arp module to the sequencers, and analogue style reverb, delay, flange and phaser modules, and a slot page 2 or we won't have enough slots! This is really good, has full MIDI learn and check out the resonator module! Once again, thanks a lot Full Bucket
Full Bucket Aug 26 2018
Aug 26 2018
Adding effect modules is a bit tricky since ModulAir is *polyphonic* (which would mean one effect instance *per voice*!)... I am thinking about a solution...
Fred Aug 26 2018
Aug 26 2018
And if you can manage a coffee maker module, it may help too :) I feel a bit down sometimes ^^
Mickey Module Aug 28 2018
Aug 28 2018
Thanks friend. Brilliant synth anyway. And if you can make a coffee module, is there any reason why it can't also have a toaster upgrade?
Mickey Module Aug 28 2018
Aug 28 2018
Sorry, just a final thought, if everyone who likes this synth sends Full Bucket a few presets made with it, it will show off what it can do. All presets names must be humourous......
Full Bucket Aug 29 2018
Aug 29 2018
Great idea, highly appreciated!
Fred Aug 29 2018
Aug 29 2018
Thanks a lot for the manual :) I'm more of a "presets user" (shame on me, I know^^) but this one makes me want to learn how to use it.. And I wanna participate ;)
AM Nov 02 2018
Nov 02 2018
Delay/echo and reverb would be great in ModulAir! =)
Toby Aug 23 2018
(5 / 5)
Aug 23 2018
This is what one man can make alone... an Awesome modular synth with great sound and for FREE..... compared to a full team like ****(...) with overpriced commercial products who are not better. Full Bucket you're magic !! Viva freeware !!
Full Bucket Aug 26 2018
Aug 26 2018
Thank you!
Faydit Aug 23 2018
(5 / 5)
Aug 23 2018
Great and very flexible!
Cajhmere Aug 22 2018
(5 / 5)
Aug 22 2018
I don't know how to use it, but all in all it's incredible for free. The CPU usage is really *wow* low, equal to Synth1 that I use mainly. It is NOT a clumsy unhandy complicated piece of software! ;) Would be great to have a really simple tutorial additionally to the manual for people like me.
Full Bucket Aug 23 2018
Aug 23 2018
I am planning such a tutorial, but this will come later... so much work to do... :-)
Cajhmere Sept 01 2018
Sept 01 2018
It would be enough to know if you do this and that, sound comes out. Something really basic that you could widen yourself after knowing the 1st steps.
Full Bucket Sept 02 2018
Sept 02 2018
Makes perfect sense! For now please take a look at the ModulAir YouTube video (top of this page). There you can see how I add some modules and patch them together to create a sound. Hopefully this gives a first clue how to use them.
ShadowKing Aug 22 2018
Aug 22 2018
Can the knobs be automated in FL Studio? If not, then one cannot alter the sound design throughout the progression of the song.
Full Bucket Aug 23 2018
Aug 23 2018
Yes, the knobs can be automated.
ShadowKing Aug 24 2018
Aug 24 2018
Anonymous Aug 21 2018
Aug 21 2018
Are you friggin kidding me... this is great
Eric Aug 21 2018
(4 / 5)
Aug 21 2018
A lot of possibilities.
Darko Aug 21 2018
(5 / 5)
Aug 21 2018
Absolutely mindblowing modular software synthesizer! Incredible and versatile sound!