🖼️ Grid Painter

Print and draw on the same paper size. The grid is measured on that single page — set cells by real-world size or by count.
Grid
Grid Style
100% Drag to pan · scroll or pinch to zoom
How it works
• Pick a paper size, drop an image onto the canvas, and overlay a measured grid.
• Print or save the result, then reproduce each cell on your own gridded paper — the classic grid method for scaling up a reference image by hand.

Features
Different print & drawing sizes — switch Page Mode to Different sizes to print on one paper (e.g. A4) and draw on another (e.g. A3). Both pages are shown side by side at true relative scale, sharing the same grid count.
Paper sizes — A2, A3, A4, A5, US Letter/Legal, or a fully Custom size in millimetres, in portrait or landscape.
Grid by cell size — set a real-world cell size (e.g. 20 mm) and columns/rows are computed to match the paper.
Grid by count — set exact Columns and Rows; enable Square cells to keep cells proportional.
Image fitFit keeps the aspect ratio, Cover crops to fill, Stretch forces an exact fill.
Grid style — adjustable line color, thickness, and opacity, an optional row/column ruler with numbers across the top and down the side, and a page border.
ExportSave PNG renders at 300 DPI for crisp printing; Print sends the page straight to your printer.