Random

Dice, lotteries, raffles and seeded random numbers you can reproduce and share.

13 generators

Bingo numbers

Seeded ball draws for 75-ball and 90-ball bingo, with the B-I-N-G-O column letters where they apply.

Coin flips

Flip a fair — or deliberately weighted — coin as often as you like, with running counts and the longest streak.

Dice rolls

Roll any dice notation — 3d6, d20, 2d10+5 — and see every individual die alongside the total.

Lottery number picker

Reproducible random lines for Powerball, EuroMillions, UK Lotto, 6/49 and dozens of other real draw formats — with the honest caveat that no picker beats the odds.

MongoDB-style ObjectIDs

Twelve-byte, 24-hex-digit ObjectIDs with a real timestamp in the leading bytes — the identifier MongoDB puts in _id, in both its current and pre-3.4 layouts.

Nano IDs

Short URL-safe random IDs in the Nano ID style — 21 characters carry more entropy than a 36-character UUID.

Normally distributed numbers

Random values that cluster around a mean and thin out towards the tails — the bell curve, drawn by the Box–Muller transform.

PIN codes

Numeric PINs of 3 to 12 digits for test data and placeholders, with no-repeat and no-obvious-pattern options. Seeded, so not for real accounts.

Raffle numbers

Draw distinct winning tickets from any range, labelled by placing or by prize tier, from a seed you can share.

Random integers

Uniform whole numbers from any range, drawn from a seed — so the same link always produces the same list.

UUIDs

Reproducible UUID v4 and v7 in any quantity, in canonical, braced, URN or compact form — seeded, so a shared link always shows the same list.

Weighted random numbers

Draw from a list where some outcomes are deliberately more likely than others — loot tables, biased coins, traffic splits.

Yes or no

Ask a question and get a straight answer — yes, no, perhaps a maybe — or consult the twenty-answer oracle. Seeded, so the same question gets the same reply.