These tools simplify visual composition by placing precise reference grids, alignment markers, or custom frames directly over your images. Whether you need to balance a shot using classical composition rules, guide a hand-drawn sketch from a reference photo, or maintain consistent margins across a collage, an overlay provides an exact visual framework. When selecting a tool, look for flexible adjustments for grid line color, thickness, and spacing, as well as the option to either export the final grid onto the graphic or hide it as an editing guide.

See the golden ratio grid drawn on your own photo. Free.