A jigsaw is a tool used for cutting arbitrary curves, such as stenciled designs or other custom shapes, into a piece of wood, metal, or other material.
It can be used in a more artistic fashion than other saws, which typically only cut in straight lines. In this way, it is similar to the rasp and the chisel.
Traditional jigsaws are hand saws, consisting of a handle attached to a small, thin blade. The first jigsaw puzzles were made using this kind of unpowered saw.