OSC2MIDI is a highly configurable OSC to jack MIDI (and back) bridge. It was designed especially for use on linux desktop and the open source Android app called "Control (OSC+MIDI)" but was deliberately written to be flexible enough to be used with any OSC controller or target. It has not been tested on windows, but has been reported to work on OSX.

OSC2MIDI allows you to change the mapping between OSC and MIDI messages using an OSC to MIDI map file (.omm). This package has several mappings already installed in the folder /usr/local/share/osc2midi/. The default mapping is made to work with all the default interfaces that come with the Control Android app.