Try the demo


Other products:

Photosounder, an image-
based sound editor/

SplineEQ, a spline-
based linear phase
equalizer plugin.

[other works]

YouTube channel

Photosounder on Facebook


You can download the demo version of Spiral (build of May 26th 2015) using the link below:

Download Spiral (demo) for Windows/Mac, VST & AU

The demo version flashes the word "DEMO" regularly and dips the visualisation and output every few seconds.

If you already own the full version of Spiral you need to download it using the link you received by e-mail. If you lost the link please submit your e-mail address below to receive the link again.

Your e-mail address:

What to do on macOS 10.15+ after downloading Spiral

Apple, always looking for innovative ways to make our lives harder.

You will see the dialog above, but don't worry about it, you can make it go away by following the steps below:

After that please if it doesn't show up in your DAW please make sure that the DAW didn't add the plugin to a list of blocked plugins.

Another approach is to "sign" it yourself on your machine. To do so make sure you have Apple's Xcode installed, then in Terminal do something like cd /Library/Audio/Plug-Ins/Components/Spiral.component/Contents/MacOS and then codesign -s - Spiral.


For any questions, suggestions, requests, send an e-mail to