A safe, inexpensive, easy to use, manual trash compactor that can be used with almost any trash container with components that store out of the way when not in use. A hand or foot control is easily manipulated to compact trash in the container. The compacting mechanism can be made easily adjustable so that the amount of force or the size of the unit can be changed for different operators or different trash containers. The unit can be used with no container to compact materials like cardboard. The compactor can have wheels and can optionally be operated by a foot lever.