converter
noun /kənˈvɜːtə(r)/
  /kənˈvɜːrtər/
(also convertor)
 - a person or thing that converts something- a catalytic converter
 
- (physics) a device for changing alternating current into direct current or the other way around                                     
- (physics) a device for changing a radio signal from one frequency to anotherTopics TV, radio and newsc2
- (computing) a program that converts data from one format (3) to another