The GSN COMPOSER is a free web-based visual programming environment for online multimedia processing. Typical areas of usage are education, research, entertainment, special effects, or arts.
Cost / License
- Free
- Proprietary
Platforms
- Online

VCV Rack is described as 'Modular synthesizer inspired by Eurorack systems. It acts a host for virtual modules which perform various audio processes. E.G. oscillators, filters, envelope generators, sequencers and more that can be connected freely in almost limitless combinations' and is a music production app in the audio & music category. There are more than 25 alternatives to VCV Rack for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best VCV Rack alternative is Bespoke Synth, which is both free and Open Source. Other great apps like VCV Rack are AudioTool, Pure Data, SunVox and SuperCollider.
The GSN COMPOSER is a free web-based visual programming environment for online multimedia processing. Typical areas of usage are education, research, entertainment, special effects, or arts.

SynthCraft provides a modular canvas and GUI designer for visually building audio plugins. Connect pre-compiled DSP modules together with virtual patch cables to create and modify sound. The app uses a built-in high speed DSP/C compiler to build native 32/64-bit binaries so no...


Cabbage Studio is a sophisticated combination of DAW and audio development environment. The studio offers a modular interface for constructing sounds driven by Csound with the power of .




Cabbage Studio is the most popular Android alternative to VCV Rack.
miRack is a Eurorack-style modular synthesizer, playground, and fx. It aims to provide user experience and audio quality close to those of the real Eurorack hardware.




A digital audio workstation, modular synthesizer, and audio editor to create music, audio effects, and audio experiments.




Axiom is an extremely flexible node-based real-time audio synthesizer. It operates standalone or as a VST instrument/effect and features a highly configurable, modular canvas where controls can be arranged and routed visually and their code can be edited using a simple but...


Softube Modular is a flexible, cross-platform synthesizer modeled after hardware modular synths featuring authorized emulations of modules from well known hardware Eurorack brands.


Orca is an Esoteric Programming Language and live-coding environment for musical experimentation. In Orca, each letter of the alphabet is an operation, lowercase letters operate on bang, uppercase letters operate each frame.

Build your own VST-compatible synthesizers with Synthedit's drag-and-drop, visual development environment.



Wren is a modular software synthesizer, or a virtual modular soft synth. Developed in Delphi, the code is provided freely and as open source.


Automatonism is a modular synthesiser that runs in the open source programming language Pure Data. It features a large library of 81 modules (version 2.1).
Hexen is a virtual modular Eurorack synthesizer for Android featuring 50+ modules in an accessible, touch-focused interface. All of the internal signal paths in Hexen have 32 bit resolution and are clocked at 48KHz. The final rendered audio is 16 bit 48KH.


