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.

Demo versions

All Mellowmuse plugins run in demo mode if there is no license file present. The only limitation in demo mode, is that silence is inserted at random intervals after a few minutes of use. Purchasing and installing a license removes this limitation. It is not necessary to install the plugin again.

Privacy policy

Our privacy policy page is here.

Installation and Authorising

See individual plugin pages for installer downloads for Mac and Windows. All plugins run in demo mode if a valid license is not present. You will be emailed login details for the user area of this site at time of purchase, where you can download your license.

All plugins now allow activation from within the UI. Just click the info (i) symbol in the bottom right hand corner, and enter your email and serial no. to authorize.


Windows:: Windows 7, 8 & 10.
Mac: OSX 10.7 and above.
All plugins are 64 bit compatible only. A VST/Audio Units compatible host is required. AAX require 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.