Technical Support

See our forum at KVR Audio or email us at:, with as much information as possible about your issue. We'll usually get back to you within 24 hours.


Mellowmuse develops innovative audio processing plugins for digital music production. Founded in 2008, we have a growing following among discerning musicians, and audio professionals.


Orders are processed securely via Paddle. Once your order is complete you'll be emailed a serial number to activate your plugin via the plugin UI. Alternatively, you can login to our user area to download a license file. Please try out our plugins before purchasing, to ensure compatibility with your system and that they meet your needs.

Privacy policy

Our privacy policy page is here.

Demo versions

All Mellowmuse plugins run in demo mode if there is no license file present, and silence is inserted at random intervals after a few minutes of use. Purchasing a license removes this limitation. No need to install the plugin again.

Installation and Authorising

See individual plugin pages for installer downloads. You'll be emailed a serial number on purchase, and can authorise your plugin from within it's UI, simply:

  • Click the info (i) button in the bottom right hand corner
  • Enter your email
  • Enter your serial, press return
An active internet connection is required.

Alternatively, you can login to our 'User Area', download a license file, and place in:
Windows: C:\Program Files\Mellowmuse\Licenses
Mac: Macintosh HD/Library/Application Support/Mellowmuse/Licenses


Windows:: Intel, Windows 7 and above.
Mac: Intel, Apple silicon, OSX 10.11 and above.

All plugins are 64 bit only. A VST/Audio Units compatible host is required. AAX requires Pro Tools v11 and above.


You may install each plugin you purchase on up to 3 machines which you own at any one time. Contact us regarding transferring a license - a fee will apply.


All plugin updates are free, except where an update adds a new plugin format.