Carla is an audio plugin host, with support for many audio drivers and plugin formats. It has some nice features like automation of parameters via MIDI CC (and send output back as MIDI too) and full OSC control.


Rack Performer is described as 'High-level modular environment hosting VST plugins and internal modules (over 100 and counting), with MIDI support, multi-channel audio I/O and internal processing, complete automatic patch-delay compensation, sample accurate sequencing, low jitter and' and is a music production app in the audio & music category. There are more than 25 alternatives to Rack Performer for a variety of platforms, including Windows, Mac, Linux, BSD and iPad apps. The best Rack Performer alternative is Carla, which is both free and Open Source. Other great apps like Rack Performer are Giada, VSTStuff, Kushview Element and Luppp.
Carla is an audio plugin host, with support for many audio drivers and plugin formats. It has some nice features like automation of parameters via MIDI CC (and send output back as MIDI too) and full OSC control.


Giada is a free, minimal, hardcore audio tool for DJs, live performers and electronic musicians. Just pick up your channel, fill it with samples or MIDI events and start the show by using this tiny piece of software as a loop machine, drum machine, sequencer, live sampler or yet...




VSTStuff is an ideal solution to play and record audio files, load VST audio effect plugins and connect these to the VSTStuff audio player.

Element is a cross-platform, modular AU/VST audio plugin host. Create powerful effects racks and instruments by connecting plugins to one another. Load graphs on the fly for quick access to your sounds.



Luppp is a music creation tool, intended for live use. The focus is on real time processing and a fast, intuitive workflow. With extensive MIDI mapping support, you can get looping just how you like!




A VST (plus AudioUnit on OSX) plugin host designed for live use. Based on the JUCE 'audio plugin host' code, heavily modified to better suit my purposes.




AudioMulch is an interactive musician's environment for PC and Mac. It is used for live electronic music performance, composition and sound design.

Cantabile is a music workstation for live performing musicians. Build your ideal rig - one that leaves you free to focus on giving your best performance.





Live, modular sound design environment that enables a user to combine, split, layer and chain their VST instruments and FX.




NanoHost is not a synthesizer. It is a free, minimalist host application for Windows that can load VST-synths. Furthermore, it can act as a wrapper which converts VST-synthesizers into standalone applications.



