Virtual MIDI Piano Keyboard is a MIDI events generator and receiver. It doesn't produce any sound by itself, but can be used to drive a MIDI synthesizer (either hardware or software, internal or external).
FreePiano is a virtual MIDI keyboard and a VST host for windows. You can use freepiano to Play piano with computer keyboard or MIDI keyboard with any vst instrument you like, or output through MIDI. Or generate any MIDI message with any key on the keyboard.You can also record you.
Virtual Piano is a free online platform for anyone to use and enjoy. It empowers you to experience playing the Piano online, using your computer – without downloading or installing an app. Users can play instantly, without prior knowledge of formal music notation.This app doesn't have any features at the moment.
MidiKeys is a small application for Mac OS X that presents a miniature MIDI keyboard onscreen. You can use the computer keyboard to play MIDI notes, or click on the keys with the mouse. There is also an option to select a MIDI source and see incoming notes played on the keyboard.