Overview
Generate 1 to 50 random numbers within any min/max range you specify, with a toggle for whether repeated values are allowed. With duplicates allowed, each number is drawn independently, so the same value can appear more than once, just like rolling a die repeatedly. With duplicates blocked, the generator instead shuffles every possible value in the range and takes the first however many you asked for, which guarantees a truly random selection without repeats rather than re-rolling until enough unique values happen to come up - a rejection-sampling approach that gets slow and unpredictable as the range fills up. If you ask for more unique numbers than the range can supply, the tool tells you exactly why rather than silently returning fewer than requested. Runs entirely client-side.
Best for: Picking a raffle winner or randomizing a test dataset
How to use this tool
- Set a min and max. Define the range you want numbers drawn from.
- Choose a count. Pick anywhere from 1 to 50 numbers to generate.
- Decide on duplicates. Toggle whether repeated values are allowed.
- Generate and copy. Click Generate to produce the list, then copy it all at once.
Why use this tool
True no-duplicate mode
Uses a proper shuffle instead of re-rolling until unique values happen to come up.
Clear range validation
Asking for more unique numbers than the range allows produces a specific error, not a silent failure.
Flexible range and count
Any min/max range, up to 50 numbers at once, covering everything from a dice roll to a raffle draw.
Copy the full list instantly
Grab every generated number at once instead of copying values one at a time.
Frequently asked questions
Rather than repeatedly generating a random number and checking if it’s already been picked (which gets slower and slower as the range fills up, since more attempts land on already-used values), this tool shuffles the entire list of possible values once using a proper shuffle algorithm and then simply takes the first N from that shuffled list. That approach takes the same amount of work regardless of how close you get to using up the whole range.
When duplicates are blocked, the count you request can’t exceed the number of distinct integers between min and max - for example, a range of 1 to 10 only contains 10 possible values, so asking for 15 unique numbers from it is mathematically impossible. Allowing duplicates removes that ceiling entirely, since the same value can be drawn as many times as needed.