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 The Ugly VSTi Interface by reFuse Software is an Audio Plugin Host. It can host VST Plugins. It supports ReWire.
The Ugly VSTi Interface
Product The Ugly VSTi Interface
Developer reFuse Software
Price (MSRP)
Type / Tags Simple VST HostFormat Adapter
Plug-in, App & Soundware Format(s)
Can Host
ReWire Synth Application
Operating System Availability
Download Released
Downloads Released
Miscellaneous Information
Copy ProtectionNone
Max. 6 items
Latest Version Changes [view all]

Ugly VSTi Interface is a simple host application for VSTi plug-ins. It loads one VSTi at a time, and no effects, but it's intuitive and stable.


  • The Ugly can now be launched by double-clicking a VST file.
  • Now remembers your MIDI input device of choice.
  • Added "hold" button for onscreen keyboard.
  • Now passes aftertouch MIDI data.
  • Added Panic button (kill all hanging MIDI notes).
  • Lots more little improvements.
  • Awesome new ugly colors.
Latest User Reviews Average user rating of 1.00 from 1 review

Reviewed By techdawg
December 8, 2016

I installed Ugly VSTi, chose my MIDI input, chose my audio interface in output options, loaded a VSTi and loaded a patch. When I play my MIDI keyboard the MIDI received indicator lights on and off but I got no sound. I checked and tested my audio interface with AudioMIDI Setup and it's fine. So I'm still looking for a free VST host. Anybody know a VST host that works with OS X Yosemite (10.10.5) ?

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Discussion: Active
12 December 2016 at 10:01pm

Hi, I am the developer of the Ugly VSTi. Could you clarify if the audio meters (labeled L and R, on the right side of the interface) were showing signal?

Also, which VSTi plug-in were you testing it with?

Please feel free to send a support request about this issue here:


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The Ugly VSTi Interface

Average user rating of 1.00 from 1 review

reFuse Software
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