Printable paper
Lined, Seyès, squared, dot grid or millimetre graph. You set the spacing, the colour and the margin, then print on ordinary A4. The rulings are vector-drawn, so they stay crisp whatever the printer.
To get a PDF: click Print, then choose “Save as PDF”. Untick “Headers and footers”, and check that the scale is set to 100% — that is what makes your squares measure a true 5 mm.
The five papers, and what each is for
Lined paper
Horizontal lines and nothing else. The spacing changes everything: 6 mm suits a small adult hand, 8 mm everyday writing, 10 mm anyone who writes large or is still learning. If in doubt, print a page of each and write the same sentence on both.
Seyès paper (French school ruling)
This is the ruling used in French schools, usually called “grands carreaux”. Each 8 mm line is subdivided by three finer lines every 2 mm, and verticals every 8 mm complete the grid. The structure is not decorative: the fine lines set the height of the lower-case letters, the strong line is the writing line, and the verticals keep the downstrokes at a consistent slant. That is what makes it possible to learn an even cursive hand.
Squared paper
Even squares throughout. 5 mm is the standard size in Europe, for maths and for tables alike. 10 mm leaves more room for drawing, or for setting out sums in columns.
Dot grid paper
A grid of dots instead of lines. The dots guide without boxing anything in, and they drop out of sight once the page is full — which is why they became the surface of choice for bullet journals, sketches and diagrams. 5 mm is the spacing most people use.
Millimetre graph paper
Three levels laid over one another: a fine line every millimetre, a medium one every 5 mm and a firm one every centimetre. It is for plotting curves, reading off measurements, drawing to scale. Of the five, it is the only one where print accuracy really matters.
Printing at the right scale
A 5 mm square measures 5 mm only if the print is not resized. In the print dialogue, find the “Scale” or “Scaling” setting and put it at 100%: “Fit to page” shrinks the ruling slightly and throws off every measurement. To check, lay a ruler on the printed sheet — ten 5 mm squares should come to exactly 5 cm. The sheets are A4, not Letter.
Ink and legibility
Too dark a ruling competes with the handwriting; too light and it disappears in the photocopier. The grey-blue set by default is a compromise: visible enough to guide, quiet enough to fall behind the text. If you photocopy a lot, go up a step in line weight rather than in darkness.
What this page does not do
It asks for no account, adds no watermark, and stores nothing beyond your own settings, kept by your browser. The paper is drawn by your browser: you can cut your connection off entirely and it carries on working.