RandARP is a free arpeggiator VST plugin developed by CodeFN42. Compatible OS(s): Windows.
RandARP is a VST plugin arpeggiator with many randomization features, allowing incoming notes or chords to be manipulated in various rhythmic ways. All standard arpeggiator parameters like number of octaves, note length and note order are included, but the plugin also offers complete randomization of the velocity, gate, shift and swing parameters.
In addition, you can specify a note probability and randomize the note order, the octave order, and the number of octaves. All the randomization features allows you to create more interesting and unpredictable arpeggiated sequences.
Freeware for Windows, both 32 and 64-bit.
http://www.codefn42.com