Random Number Generator by Pavel is the app people install for one job: pick a number between two limits and get an answer fast, whether that’s settling an argument, drawing a raffle winner, or sampling a dataset. That job does not need an install. We built Rolly, a free random number generator that runs right here in your browser. Set a range, tap Generate, and get your number in under a second.
Roll a number now
It opens with a range of 1 to 100 already loaded, so you see a real result the moment the page loads. Adjust the min and max, tap Generate, and watch it spin down to a new number.
How to use it
Set your range with the Min and Max steppers, either by tapping the plus and minus buttons or typing a number directly. Tap Generate and the result spins for about half a second before settling on your number, and every keystroke or tap stays responsive because the math itself is instant. The “how many” stepper lets you generate several numbers at once, up to 50 in one tap, useful for picking multiple raffle winners or sampling a batch in one go.
Turn on No repeats to stop the same number coming up again until every value in your range has appeared once. Every roll is added to the history list below, so you can scroll back through your last several results. Your range, settings, and history are all saved on your device, so closing the tab or reloading the page never loses your last roll. Nothing you generate is uploaded anywhere.
How it compares to Random Number Generator
Rolly does one thing: pick a random whole number (or several) inside a range you set, with an optional no-repeats mode, on anything with a browser. The full Random Number Generator app goes considerably further. It adds a raffle mode for running full drawings, a password generator with configurable character sets, a yes/no decision maker, a random list picker for choosing between named options, and a conversation-topic generator, plus the ability to save your favorite settings for instant reuse.
We kept the core loop: set a range, tap once, watch the number land, with a no-repeats toggle for when you’re drawing multiple winners from the same pool. We deliberately left out the password generator, the list picker, the yes/no mode, and saved presets, because a page you land on to settle “what number between 1 and 50” should answer that question in seconds, not ask you to learn a menu of unrelated tools first.
Our honest advice: use Rolly when you need a quick number for a giveaway, a game, or a random sample and want to keep working without switching apps. Install the app when you regularly run raffles with named entrants, need a password generator on hand, or want your range presets saved for next time.
Get the full app
Random Number Generator by Pavel is free on Android and adds a raffle mode, a password generator, a yes/no decision maker, and a random list picker for choosing between named options, all saved and ready on your phone.
Frequently asked questions
Can I generate random numbers online without downloading an app?
Yes. Rolly runs entirely in your browser above, so you can set a range and generate numbers on desktop or mobile without installing anything. If you want raffle mode, saved presets, or a password generator too, the full Random Number Generator app adds those.
Is this the official Random Number Generator app?
No. Rolly is an original tool we built, inspired by the quick-pick problem Random Number Generator solves. It is not affiliated with, endorsed by, or connected to Pavel or PavelDev. If you want the raffle mode, password generator, or list picker, get the official app from the store above.
Does the no-repeats mode really avoid every duplicate?
Within a range, yes. With No repeats on, Rolly tracks which numbers it has already given you and won’t hand out the same one again until every value in your current range has come up once, at which point it starts a fresh round. Turn it off if you want fully independent rolls where repeats are possible.
Is it free and does it work offline?
Yes. There is no signup, no payment, and no limit on how many numbers you generate. Once the page has loaded, generating numbers keeps working even if your connection drops, since the calculation happens entirely on your device.
Can I generate more than one number at a time?
Yes. Use the “how many” stepper to generate up to 50 numbers in a single tap. With No repeats on, a multi-number roll draws each value without replacement from your range, so none of the numbers in that batch repeat each other.
