Random Number Generator

Set a range, hit generate, watch the digits spin and land — inclusive bounds, no-repeat batches, and a pool that never gives the same number twice

👥 1 player, everyone else watching🎯 Random Pickers⚡ No download · No sign-up

🕹️ How to play

How to set the range: Type the low and high number into the two boxes above the reels. The gold pill between them always spells out which bounds are included, so 1-100 really can land on 1 or on 100. On a phone use the − / + steppers, or tap a preset chip (1-10, 1-100, Roll call 1-50, Dice 1-6) to swap the whole range in one go. Backwards input is swapped for you; decimals are rounded down.
How to generate several numbers with no duplicates: Open More settings and raise "How many" (up to 100). Leave "No duplicates in this batch" on and the numbers in one batch will all differ. Ask for more numbers than the range can supply and the Generate button locks with a plain-language reason plus two ways out — draw only what is left, or allow duplicates — instead of silently handing back a shorter list.
How to stop a number from coming up twice: Switch on "Never repeat a drawn number" next to the status line. From then on each number leaves the pool as it is drawn, the counter next to it ticks down, and the main button turns into "Start a new round" once the pool is empty. That is the mode for roll calls and raffles. Pressed too fast? "Put the last one back" steps exactly one draw back.

📖 Rules & variants

One person presses, everyone watches: set the range, press Generate, and the reels roll for 0.9 seconds before locking from the last digit up to the first, finishing with a burst of light, confetti and a result card you can screenshot. The interval is always closed — 1-100 includes both 1 and 100 — and any whole number from -1,000,000 to 1,000,000 works. Enter the bounds the wrong way round and they are swapped for you.

The two kinds of "no repeats" are different things and are named differently on screen. "No duplicates in this batch" only promises that the numbers in one draw differ; the next draw may repeat them, which is what you want when pulling six lottery-style numbers. "Never repeat a drawn number" is elimination across the whole round: each drawn number leaves the pool until it is empty, which is what you want for a roll call or a raffle. Turn on both, one, or neither — with neither you get plain repeatable numbers, good for simulating dice or generating test data.

Impossible requests are refused out loud, never trimmed. If the range cannot supply that many distinct numbers, the button locks, the message says how many are actually left, and two tappable exits appear: draw the remainder, or allow duplicates. Elimination is offered only while the range holds 10,000 numbers or fewer, because the drawn list has to fit in your browser's storage — past that the switch is disabled with the reason spelled out.

Nothing here is mystical. The tally bar under the stage shows how often each number has come up (ten segments instead of one bar per number once the range passes 200), so a repeat in repeatable mode reads as ordinary rather than broken. The numbers come from the browser's pseudo-random generator: fine for parties, classrooms and dice, not for cryptography, lotteries or anything with real money on it. Range, history and tally live in your browser only, survive a reload, and are cleared only after you confirm a range change.

❓ FAQ

Does a random number generator include the maximum?

Here it does — both ends are in play. Set 1-100 and the draw can land on 1 or on 100. The gold pill between the two inputs always states which bounds are included and updates when you change the range, so you never have to hunt through a help page for the convention.

How do I generate random numbers with no repeats?

Decide which kind you need. For numbers that differ inside one draw, leave "No duplicates in this batch" on and raise the count. For a number that never comes back for the rest of the round, switch on "Never repeat a drawn number": each result leaves the pool, the "left" counter drops, and the round ends when the pool runs dry.

How many random numbers can I generate at once?

Up to 100 in one press. Open More settings, raise "How many", and the batch is revealed as a grid you can re-order by draw order, low to high, or high to low. With no-duplicates on, the count cannot exceed what the range still has — ask for more and the button locks with a count of what is left rather than quietly shortening your list.

Why does my random number generator repeat the same number?

Because repeats are what a fair draw with replacement looks like. In a 1-10 range two draws collide about one time in ten. The tally bar below the stage shows the real counts so you can check it yourself. If you need collisions gone, turn on "No duplicates in this batch" or "Never repeat a drawn number".

Is an online random number generator truly random, and can I use it for security or a lottery?

No. It runs the browser's pseudo-random algorithm, which is more than enough for party draws, classroom roll calls and simulated dice, and its spread is covered by distribution tests. It is not cryptographically strong, so do not use it for keys, passwords, lotteries or anything with money riding on it. The page says so on its face.

Does a random number generator remember what it already drew?

Yes, in your own browser. Range, count, switches, this round's history and the tally are all restored after a reload, with the page sitting still rather than replaying the animation. Changing the range asks first and tells you how many numbers were already drawn. In private mode, where nothing can be saved, More settings says so up front.

⚠️ Numbers come from the browser's pseudo-random generator. For entertainment only — not for cryptography, lotteries or real-money draws.

Last updated: 2026-09-03 · Saved on this device only