Random number generator
Pick a number. Any number.
Set a range, choose how many numbers you want, and draw. Turn on no repeats for lottery style picks. The numbers come from your browser's secure random generator, not from a formula that can be guessed.
Nothing is stored or sent. For a regulated draw, use the organiser's official method.
Free tool from Pocket Puzzle Arcade
What kind of random is this?
Most simple generators use a formula that produces numbers that look random but follow a fixed pattern if you know its starting point. This page asks your browser for numbers from the same secure source it uses to make encryption keys. When the range does not divide evenly into that source's output, the extra values are thrown away and redrawn, so no number is more likely than another.
Using it for common jobs
| Job | Setup |
|---|---|
| Pick a giveaway winner | From 1 to the number of entries, one number. Count the entries in the order you received them. |
| Lottery style picks | Use the lotto preset, or set your range and turn on no repeats and sort. |
| Who goes first | From 1 to the number of players. |
| A PIN-style set of digits | From 0 to 9, three or four numbers, repeats allowed. Do not use a web page for a real PIN or password. |
| Sample from a list | Number the list, set the range, turn on no repeats. |
Random does not look random
True randomness produces streaks and clumps: the same number twice running, or three in a row from the same tenth of the range. Most people expect more evenness than chance delivers. And no number is ever "due". If you draw 7 four times in a row, the chance of a 7 next time is exactly what it was before.
Lottery numbers
A generated ticket is as likely to win as one you chose yourself, which is to say very unlikely. The only difference is that picks made from birthdays cluster below 32, so if you do win, you are more likely to share the prize with other people who picked birthdays. Playing is entertainment, not an investment.
Questions people ask
Is this random number generator truly random?
It uses your browser's cryptographically secure random source, the same one used for encryption keys, with the bias that comes from simple rounding removed. That is random enough for games, giveaways and everyday picks.
How do I get random numbers with no repeats?
Tick No repeats and ask for several numbers. The tool draws each value only once and warns you if the range is too small for the amount you asked for.
Can I use this to pick a lottery ticket?
Yes, the lotto preset draws six different numbers from 1 to 49. A generated ticket has exactly the same odds as any other.
Can it make decimal numbers?
Yes. Choose 1 to 3 decimal places and every value with that many decimals in your range is equally likely.
Like numbers that add up? Try the bridges.
Number Puzzles: Sumbriska is a logic game for iPhone and iPad. Tap a bridge to flip it and watch the totals on both islands change until every island matches its target. Its listing describes six themed regions, a timed run and an endless mode.
Get Sumbriska on the App StoreFree download with an optional in-app subscription; iOS/iPadOS 18 or later. Check the App Store for what the free regions include and current prices.
Honest Little Apps publishes both Sumbriska and this page. This is a separate browser tool and does not sync with the app. App details checked November 10, 2026.
On a computer? Open it on your iPhone
