Coinc is a compact and fast (greedy) coincidence seeker. The program works with timestamped list-mode data and it will find you coincidences for events from a given trigger channel. The coincidence window is adjustable on a channel-to-channel basis. The coincidences can be located either before or after the trigger event. The size of backwards and forwards lookup is adjustable. The program is greedy, i.e. it will not find all coincidences meeting the criteria, but just one.