Grid Paper Generator

Printable graph, dot and isometric grids

The grid is generated at exact millimetre size. Print at 100% scale (no "fit to page") so the spacing stays true.

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Add this free tool to your own website — copy and paste the code below.

'; const win = window.open('', '_blank'); if (!win) { if (window.showToast) window.showToast('warning', T.popup_blocked); else alert(T.popup_blocked); return; } win.document.open(); win.document.write(html); win.document.close(); win.focus(); setTimeout(() => win.print(), 300); }); downloadBtn.addEventListener('click', async () => { const token = await ensureCharged(); if (!token) return; if (token.downloadUrl) { window.location.href = token.downloadUrl; return; } // Free fallback (admin set the cost to 0): no server PDF was // produced, so offer the exact-size SVG instead. const c = readConfig(); const node = svg.cloneNode(true); node.setAttribute('width', c.W + 'mm'); node.setAttribute('height', c.H + 'mm'); const blob = new Blob([new XMLSerializer().serializeToString(node)], { type: 'image/svg+xml' }); const a = document.createElement('a'); a.href = URL.createObjectURL(blob); a.download = 'grid-paper.svg'; a.click(); URL.revokeObjectURL(a.href); }); render(); })();