The Random Number Generator creates random integers from a chosen range, rolls virtual dice, or selects numbers for supported lottery presets. Basic mode can allow or prevent duplicate values.
Modes
- Basic: Choose minimum, maximum, count, and duplicate handling.
- Dice: Roll 1-6 dice with 2-100 sides.
- Lottery: Use built-in Powerball, Mega Millions, UK National, or Australian Saturday presets.
Without duplicates, the generator samples from a shrinking pool. With duplicates, each draw independently samples the full range.
Questions
Is this cryptographically secure?
No. The implementation uses Math.random(). Do not use it for passwords, tokens, keys, gambling guarantees, or security decisions.
Can I request more values than the range contains?
Only when duplicates are enabled. Without duplicates, count cannot exceed the number of available integers.
Does a lottery preset predict winning numbers?
No. It only formats the configured count and maximum for random selection.
Limitations
Results are pseudorandom convenience outputs. They are not evidence of fairness, prediction, or cryptographic unpredictability.