Printable Sudoku Grids
Free sudoku at exact scale — generate valid puzzles at five difficulty levels, or print blank grids, 1, 2, 4 or 6 per page with bold 3×3 boxes.
Pick a difficulty — easy, medium, hard, expert or evil — to print ready-to-solve puzzles, each with a single valid solution. Or choose “Blank” to copy puzzles from a book or newspaper, design your own, or teach solving technique. The 9×9 grid prints with bold lines around each 3×3 box so it reads exactly like a published puzzle.
Every grid on the page gets its own fresh puzzle. Hit Shuffle to generate a brand-new set, or fit one large grid per page for comfortable solving.
Printing at exact scale
Every sheet is drawn in real millimetres and prints at exact physical scale. For accurate output, set Scale = 100% (Actual size) and Margins = None in your browser's print dialog. Not sure your printer is honest? Run the printer ruler test first to confirm 50 mm really measures 50 mm. Prefer a file? Use the PDF, PNG or SVG buttons to download the sheet instead of printing — PDF and SVG keep the exact dimensions, and PNG is a 300 DPI image.
Frequently asked questions
Are these real, solvable puzzles?
Yes. Choose a difficulty (easy to evil) to generate valid sudoku with exactly one solution. Or choose “Blank” for empty grids to fill in your own numbers or copy a puzzle into.
What do the difficulty levels mean?
Difficulty is set by how many starting numbers (clues) are given: easy grids have the most clues, evil the fewest. Every level still has a single unique solution.
How many grids per page?
Choose 1, 2, 4 or 6 depending on how large you want each grid.
Is it really free?
Yes. Every template on printsheet.io is completely free, with no sign-up, no account and no watermark. Generate as many sheets as you like.
How do I get an exact-scale print?
Choose your paper size, then in the print dialog set Scale to 100% or “Actual size” and Margins to None. The sheet is defined in real millimetres, so it prints at true size. Use the calibration ruler page to verify.
Which paper sizes are supported?
A4, A5, A3, A6, US Letter, Legal and Tabloid, in portrait or landscape. Pick the size that matches the paper loaded in your printer.
Can I save it as a PDF instead of printing?
Yes — choose “Save as PDF” as the printer in your browser's print dialog. The PDF keeps the exact millimetre dimensions.
Can I download it as an image (PNG or SVG)?
Yes — as well as Print and PDF, every sheet has a PNG and an SVG download button. PNG gives you a high-resolution (300 DPI) image at the exact page size, ideal for pasting into a document or sharing. SVG is a scalable vector file that stays razor-sharp at any size and can be edited in tools like Inkscape or Illustrator. Both are generated in your browser from the sheet you see on screen.