About Gridfunction

A free online tool for making paper exactly the way you need it.

Gridfunction creates printable graph, dot, lined, isometric, polar, logarithmic and other grid paper. Choose a paper style, page dimensions, spacing and color, then print or export. For more complex projects, you can warp grids with mathematical functions and add images from your computer.

The editor runs in your browser without an account or cloud image-processing service. It is built with plain HTML, CSS and JavaScript, with no React, Vite, Astro or build step.

Browse the paper types guide or learn how nonlinear transformations work.