Print custom BINGO cards
Generate up to 10 standard 5×5 BINGO cards with one click. Customize the per-column ranges, toggle the free center, and print straight from your browser.
How to print BINGO cards
Each column draws unique numbers from its own range. B:1–15, I:16–30, N:31–45, G:46–60, O:61–75 — classic 75-ball BINGO defaults.
- 01
Name the card
Type any 5-letter header (defaults to BINGO).
Inputs are treated as UTF-8 throughout the pipeline and validated client-side as you type — nothing dispatches until the value is well-formed.
titleinpututf-8client-sidevalidatedtitle · textB I N G O · setBINGO
loaded · parsedclient-side - 02
Tune ranges
Adjust each column min/max — handy for kids' BINGO with smaller numbers.
Each toggle re-computes through a memoised hook, so flipping options never resets your input and the UI stays snappy on large inputs.
rangeoptionslivememoisedtogglesB · memoised1 – 15 · liveB: 1–15
options set · memoisedlive - 03
Pick count
Generate 1–10 unique cards in one go. Each is independently random.
Randomness — where used — comes from
crypto.getRandomValues, neverMath.random. Heavy work sits inuseMemo.countcomputeinstantlocaldeterministiccards · instant1 – 10 · computed5 cards
computed · instantinstant - 04
Print
Browser print does the rest — one card per page, controls hidden.
Copy writes through
navigator.clipboardand downloads use aBlob— zero network traffic. Same input plus same options always yield the same bytes.printcopydownloadzero-networkreproducibleok · copiedready · copiedSent to printer
shipped · ready to shipsuccess
Pro tips for everyday utilities
Reach for crypto.getRandomValues
Cryptographically random for IDs, tokens, salts. Math.random is for animation and games, not security.
Mock data with seeds
Faker-style libraries can be seeded so tests are reproducible. Embed the seed in the fixture file.
Reference cards beat memory
Cheatsheets for Vim, Git, Docker, Linux signals are faster than man pages when you’re mid-flow.
Browser APIs vary
Touch events, gamepads, and clipboard differ across vendors. Feature-detect before use.
Persist in the right place
localStorage for user preferences, sessionStorage for transient state, IndexedDB for structured data.
When to print BINGO cards
Classroom games, parties, fundraisers, conferences.
Classroom games
Math BINGO with custom ranges builds quick recall. Random values come from crypto.getRandomValues — cryptographically secure for tokens, salts, and session IDs. Math.random is deterministic enough for animations but predictable enough to be a security bug.
CSPRNG-backedParty night
Print a stack and run a quick round at the table. Pair with hashids, ULID, or UUID v7 when you need both random and sortable — useful for primary keys, public-facing IDs, and event log ordering without a sequence column.
reproducibleFundraisers
Sell paper cards for a charity drawing. Output is deterministic given the same seed, so fixtures and tests stay reproducible across CI runs and contributor machines. Embed the seed in the fixture file for full replay.
snappyStandups
Buzzword BINGO works with any custom title. Heavy work runs through useMemo so the UI stays snappy on large inputs. Same input + same options yields identical bytes — the kind of stability snapshot tests rely on.
feature-detectedHolidays
Different ranges per season — fresh deck every time. Storage tools persist to the right backend: localStorage for user preferences, sessionStorage for transient state, IndexedDB for structured data. Pick the right shelf and quota worries disappear.
deterministicConferences
Make speaker BINGO for a workshop crowd. Browser feature detection: clipboard, fullscreen, gamepad, and Web Bluetooth APIs gracefully fall back when unavailable. No surprise white screens on Safari or older Firefox.
production-readyFrequently asked questions
Something missing?
Tell us what you need. We ship the top requests every two weeks.