SooperLooper is a live looping sampler capable of immediate loop recording,
overdubbing, multiplying, reversing and more. It allows for multiple
simultaneous multi-channel loops limited only by your computer's available
memory.

The application is a standalone JACK client with an engine controllable via OSC
and MIDI. It also includes a GUI which communicates with the engine via OSC
(even over a network) for user-friendly control on a desktop. However, this
kind of live performance looping tool is most effectively used via hardware
(midi footpedals, etc) and the engine can be run standalone on a computer
without a monitor.