Audio Plugin Player is a lightweight VST and AU instrument plugin host, that allows you to play these instruments using either your mouse, computer keyboard, or MIDI device (both hardware and software MIDI devices supported). It has a simple, one-screen interface, that will let you start making music with your favorite audio instrument plugins in seconds – just drop your plugin onto the application window, make your input and output choices, and you're ready! Audio Plugin Player allows you to route your plugin instrument through a plugin effect (either VST or AU), and also lets you route external audio through a plugin effect too.

What's New

Version 1.3.1

• Fixes crash on startup when running on Mac OS 10.13.x
• Attempts to address problems with some plugins' copy protection and sandbox restrictions
• Added sample rate selector
• Added pitch bend response when in MIDI mode
• Now runs in either 64-bit or 32-bit mode, select in app's About box
• Clicking on Defective Records icon no longer opens two separate web pages

Ratings and Reviews

Joe Max ,

Trouble with using USB Audio Codec

It works well when being sent to the default built-in output, but when I switch it's output pull-down to my Behringer mixer, which is using the basic USB Audio CODEC, it crashes. It locks up and the only way to get it running again is reloading it. Which makes it a lot less useful to me. I went with a NOT freeware app because I assumed it would be better made. If you plan to use this with any output device other than the built-in output, I can't recommend it.

Toriwil ,

Could get nothing to work.

Would not load .vst3 files.

Appears not to provide the proper environment for licensed VSTs thorough iLok, Autura Software Center, or eLicense. Detected the problem sometimes, but on other occasions, simply became catatonic. To get anywhere, had to manually start the appropriate license manager.

Scoultrane1978 ,


Downloaded this thing. Tried to open it twice. Froze and crashed both times. Can’t recognize the plugin I loaded into it. Horrible app, don’t bother with it.


Daniel Nigrin
19 MB
OS X 10.6.6 or later
Age Rating
Rated 4+
© 2017 Defective Records Software


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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