Sine Machine

is an additive synthesizer

sine machine is an instrument that you play in your DAW.

it looks like this:

Product screenshot

It runs on macOS and Windows.
It’s a VST3, AU and CLAP instrument.
You can also run it as a Standalone app.

sine machine has over 10,000 time domain oscillators

(and over 20k lfos)

it is friendly *

*for an additive synth…
(in the worst case, fun and colorful?…)

it has features

  • 20 voices of 511 time-domain oscillators
  • bulk-editing of per-harmonic ADSR, volume and pitch LFOs
  • additive “reverb” made out of 1000 sine waves
  • additive “filters” including brickwall and gaussian band-pass
  • per-harmonic gaussian pitch noise (yum)
  • hackable plaintext presets (json format)
  • microtonal support via MTS-ESP and MPE
  • 90 factory presets
  • 0 knobs (don’t ask)

and lots of visualizers

(they help you understand wtf is going on)

Sudara, the developer of Sine Machine

sine machine was built (and re-built) by Sudara over a period of 5 years

(i’m a musician and indie dev who also does some open source )

sine machine by @sudara is the best synth I have ever used
@imKelbin
got this a bit ago, just booted it up like 15 mins ago and this might be the coolest synth ive ever messed with what the fuck
@anem0s1
its blowing my mind already <3 about to hear this in all of my projects LOL <3
galen tipton aka recovery girl
loaded up the demo and two hours flew by, good going !
Diskette

Buy “Early Access”

It’s November 2025 and Sine Machine just had a private beta. Bugs were fixed. Features were added. Now I want to quietly (shhh!!) let a few more people play with it while I polish things up, wrap up the manual, fix obscure DAW bugs, etc.

What’s included

  • MacOS AU, VST3, CLAP, Standalone (Apple Silicon and Intel)
  • Up to 3 installs per license (online activation required)
  • Windows VST3, CLAP, Standalone (Windows 10 and later)
  • Updates included

Pay what you want!

$60 USD

Buy Now

Pick a price that feels good to you.
All taxes are included.

Note that I don’t do discounts
or bLaCk fRiDaY dEaLZ!!

Frequently asked questions

Have a different question? Hit me up at sudara@melatonin.dev

What are the minimum requirements?
Windows: Windows 10 and later
MacOS: Apple Silicon recommended.
Intel Macs are supported (macOS 11 and later), I’ll be improving performance during early access.
What formats does Sine Machine come in?
VST3, AU and CLAP on macOS.
VST3 and CLAP on Windows.
Standalone on both.
No AAX?
Not at the moment. We recommend using Modalics’ amazing (and free!) PluginBuddy wrapper for people using Protools.
Is Sine Machine CPU hungry?
It can be heavy on older machines, especially low notes with unison voices and all the bells and whistles. Otherwise it’s pretty chill.
Is there a trial?
Yup. 14 day trial. Download it here.
Do you offer offline license authorization?
Not at the moment, you’ll need to be online to authorize the purchase on your computer.

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