YC-20 organ software emulation for Mac and Windows

Sound Grain by Olivier Bélanger is a graphical interface where users can draw and edit trajectories to control granular sound synthesis modules.

Home site of Guitar tools, a multi-platform application for Guitar and Bass Players of any style.

Site of the AnaMark VST synthetizer

German academy for audio engineering, music production & drum programming

Free plug-ins by Vladislav Goncharov

HV Synth Design, a website dedicated to (mainly) physical modeled instruments.

Arthur Clemens (Visible Area) makes Soundfield, a visual audio mixer.

Freeware VST instruments for Windows

VSTForx is a high creative effect network creation tool which comes as a VST-plugin.