The present disclosure relates to a golf swing training device that gives real-time visual feedback for obtaining correct golf club swing mechanics. Features and implementations include: (1) a number of alignment indicators such as disks or blocks capable of lying flat on the ground or a surface; (2) a cable, string, rope, or chain that connects the alignment indicators and that the alignment indicators are spaced along; (3) a positioning guide placed on the ground or a surface that indicates proper placement of the connected alignment indicators in order to create the proper arc shape of the connected alignment indicators; and (4) alignment markers on each alignment indicator to show the proper angle the golf club face should have at different points during a swing.