About

Griduna.com is a free public browser tool. Drop a reference photo, overlay rows and columns, then download PNG or JPG. The image is drawn in this tab. Nothing is uploaded, and you do not create an account.

Several grid sites still ask for a login, a trial, or an upload before you can print a reference. This page is ready when it loads: crop, rotate, diagonals, composition guides, and 4× PNG sit on the same card. It is built for artists, students, and teachers who copy proportions square by square and then want to get on with the drawing.

Public contact is contact@griduna.com.