Random Number Generator and Coin Flip
Pick random numbers from any range, or flip a coin, with fresh results every click.
Runs entirely in your browser. Nothing you enter is uploaded anywhere.
How to use this tool
To pick random numbers, choose the Random numbers tab, set a minimum and a maximum to define the range, then say how many numbers you want. Turn on No repeats if every number in the result must be different, which is handy for raffles, team draws, or lottery style picks. Press Generate and you get a fresh set every time. To use the coin toss simulator, switch to the Coin flip tab, pick how many flips you want, and press Flip. You can copy any result with one click.
How the random integer range works
The generator uses your browser's built-in randomness to produce a number that is greater than or
equal to the minimum and less than or equal to the maximum, with every value in the range equally
likely. The + 1 at the end makes the maximum reachable, so a range of 1 to 6 can actually
return a 6. When No repeats is on, each picked value is removed from the pool before
the next draw, so you can never request more unique numbers than the range can hold. A coin flip is the
same idea with only two outcomes: roughly a 50 percent chance of heads and 50 percent of tails on each
flip.
A real example
Say you are running a giveaway with 250 entrants and need to pick 3 distinct winners. Set the minimum to 1, the maximum to 250, the count to 3, and turn on No repeats. A single generate might return 47, 188, 9. Because repeats are off, you will never see the same entrant number twice, so all three winners are guaranteed to be different people.
Common questions
Is this random number generator truly random?
It uses the random source built into your web browser, which is fine for games, draws, picking names, and everyday decisions. It is not certified for cryptographic security or regulated gambling, so do not rely on it where a legally audited generator is required.
How do I pick random numbers without repeats?
Tick the No repeats box before generating. Each number is then removed from the pool once chosen, so the result has no duplicates. You cannot request more numbers than the range contains, for example only ten unique values fit in a 1 to 10 range.
Can I use negative numbers or a wide range?
Yes. The minimum and maximum accept negative values and large ranges, such as -50 to 50 or 1 to 1,000,000. Just make sure the maximum is greater than or equal to the minimum.
How does the coin toss simulator decide heads or tails?
Each flip draws a random value and assigns heads or tails with an equal chance. With many flips you will see the totals settle close to a 50 to 50 split, though short runs can look lopsided, which is normal for random events.
Do my results get saved or sent anywhere?
No. Everything happens locally in your browser. Numbers and coin flips are generated on your device and nothing is uploaded, stored on a server, or shared.