Randomizers
Random Number Generator
Generate a random whole number within a custom range.
Random Number Generator result
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How this tool works
The generator uses Web Crypto values with rejection sampling to draw whole numbers inside the entered inclusive range, avoiding modulo bias; optional uniqueness removes a result from the current batch pool.
Assumptions
The minimum and maximum are inclusive safe whole numbers. Unique mode samples without replacement inside one batch, and the requested count cannot exceed the available range.
Limits to know
Only inclusive safe whole-number ranges no wider than 4,294,967,295 are accepted. Web Crypto supplies entropy, but the result is not an auditable drawing service and should not be used for regulated lotteries, cryptographic keys, or gambling.