Generate random integers, decimals, unique sets, lottery numbers, dice rolls, and shuffle lists — with no repetition, seeding options, and statistical analysis of results.
Generate Random Numbers
Generates unique integers (like lottery numbers) — no repeats.
Result
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GENERATED NUMBERS
Click "Generate!" to create random numbers
Uses cryptographically unpredictable Math.random() seeded at click time.
Frequently Asked Questions
Are these numbers truly random?
JavaScript's Math.random() is a pseudo-random number generator (PRNG) — it produces numbers that appear random but are deterministically generated from an internal seed. For most use cases this is perfectly sufficient.
What does "unique set" mean?
A unique set (also called random sampling without replacement) picks numbers so that no number can appear more than once. This mirrors lottery draws: once a number is picked, it cannot be picked again.