Random Number Generator
Choose the range, how many numbers you want and whether a number can come out twice. Each draw shows its seed and its time, so the group can see it was drawn once, and the link rebuilds the same numbers on any phone.
- Free
- No sign-up
- Runs in your browser
For informal draws: class, party, game night. Not for raffles with money, lotteries or anything regulated by law.
Everything runs in your browser. Nothing is uploaded or saved.
Result
Set the range and press "Draw numbers".
- Range
- Seed
- Drawn at
The seed is the proof: the same range with the same seed always gives these numbers. A new draw has a new seed and a new time.
Drawing in front of a room?
Put a dynamic VISU QR on the screen or on the tables. Guests scan it to open the page you choose, you can change that destination after printing, and you see how many scans it got.
Create a free VISU QR Make an event QR code firstHow to use it
- Type the range: the lowest and the highest number that can come out.
- Say how many numbers you want and whether a number may repeat.
- Press "Draw numbers". The result comes with a seed and the time of the draw.
- Copy the result, download the image or send the link: whoever opens it sees the same numbers.
Examples
Who presents first
A class of 30: draw 5 numbers from 1 to 30 with no repeats and call the students in that order.
A number for each table
A party with 12 tables: draw 1 number from 1 to 12 for each small gift, and post the image in the group.
Dice for a board game
Lost the dice? Draw 2 numbers from 1 to 6 with repeats allowed.
Questions
Is it really random?
Each draw starts from a seed made by your browser's cryptographic generator, and the seed decides every number. The seed and the time are shown with the result, so a quiet second attempt would show a different seed.
Can I use it for a raffle or a paid draw?
No. It is made for informal draws among people who trust each other. Raffles with money, lotteries and promotions with prizes are regulated in most countries and need an authorised draw, which this tool is not.
What is the seed for?
It lets anyone repeat the draw. The same range, the same quantity and the same seed always give the same numbers, here or on another phone. That is how the shared link works.
What is the difference between "no repeats" and repeats allowed?
Without repeats, a number that came out cannot come out again, like balls taken from a bag. With repeats, every number is a new roll, like a dice.
How big can the range be?
Up to ten million numbers wide, with bounds up to 999,999,999, and up to 500 numbers per draw. Negative numbers work too.
What does the link contain?
The range, how many numbers, the seed, the time and the title you typed, written into the link itself (the part after #). Nothing is stored on a server. Anyone with the link can read that title.