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Generator · Print-true

Bingo card generator

Print a set of genuinely different bingo cards — classic 1–75 numbers or your own list of words — with a free space, a caller's sheet, and no watermark across the middle. Everything is generated in your browser at true page size, and nothing you type leaves your device.

Sheet— Card— Set— Pages— Seed—
Duplicates are removed. A 5×5 card with a free space needs 24 different items.

How this generator works

A bingo card is a constrained shuffle, not a random grid. In number mode each column draws from its own band of fifteen — B holds 1–15, I holds 16–30, and so on to O at 61–75 — which is the rule that lets a caller shout "I 24" and have every player look in one column instead of scanning twenty-five cells. The same band rule scales down to the 3×3 and 4×4 sizes as 1 to 15 per column. In word mode the cells are drawn from your list, shuffled independently for every card, and no item is ever placed twice on the same card. The sheet itself is SVG drawn in real millimeters, so the cards print at the size you see rather than at whatever your dialog decides.

Every card in a set comes from one visible integer seed. The seed feeds a small deterministic generator, the generator drives each card's shuffle, and the value is printed faintly in the corner of every card alongside its position in the set — card 14 of 30. That combination is what makes a classroom or party set recoverable: if the copier eats three sheets, re-enter the seed and print exactly the same cards again, rather than a fresh set that no longer matches the ones already handed out. Press "New set" when you actually want different cards. Printing goes through your browser's own dialog, so the destination "Save as PDF" turns the whole set into a single multi-page file.

The honest limits. With a word list only just long enough — 24 items for a 5×5 card with a free space — every card necessarily holds the same items in a different arrangement; the page warns you rather than pretending otherwise, and twice that many items is where sets start to feel genuinely distinct. Long entries are shrunk and wrapped to fit their cell, which works well to about three short words and turns unreadable well before a full sentence. A free space needs a middle cell, so it applies to the odd sizes only. And as with every sheet here, the print dialog must be at 100% or "Actual size" — "Fit to page" rescales the card and no generator can prevent that from outside the dialog.

Frequently asked questions

How many different bingo cards can I print at once?
Up to thirty in one run, one or two to a sheet, and every card in the set is shuffled separately. The set is also reproducible: the seed shown in the readout strip is printed in the corner of each card, so re-entering it regenerates the identical set if a copy jams or you need one more of card 14.
Can I use my own words instead of numbers?
Yes — switch the mode to "Your own list" and put one item per line in the box (commas work too, for pasting out of a spreadsheet). A 5×5 card with a free space needs 24 different items; the generator tells you if the list is short rather than quietly repeating entries on the same card.
Where is the list of numbers or words to call?
Leave "Include a caller's sheet" ticked and the last page of the set is exactly that: every number or item in play, each with a box to tick as it is called. Most generators print cards and stop, which leaves the caller writing the list out by hand.
How do I get a PDF instead of a printout?
Press Print, then choose "Save as PDF" as the destination in the dialog — the whole set becomes one multi-page PDF, one card sheet per page. That's by design: your browser generates the PDF itself, on your device, so no file is ever created, stored, or watermarked on a server.
Is anything uploaded or stored?
No. The word list you type, the cards, and the caller's sheet are all built as vector geometry inside this page and printed through your browser's own dialog. There is no account, no watermark, and no saved settings — close the tab and it is gone.

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