Set a minimum and maximum, optionally restrict to even or odd numbers, choose with or without replacement, and the tool returns the requested count of integers sampled uniformly from the eligible set. Endpoints are inclusive: min = 1, max = 10 can return any of 1, 2, …, 10.
No-repeats mode samples without replacement and is automatically capped at the size of the eligible set — asking for 11 unique values from a 10-number range is impossible and the tool will say so. The underlying RNG is Math.random(), which is fine for everyday picks (raffle numbers, name draws, dice substitutes) but not for anything that needs cryptographic strength; use crypto.getRandomValues() based tools for those.
When enabled, the tool samples without replacement: each generated number is removed from the candidate pool before the next pick. The batch size is automatically capped at the range size — you cannot draw 11 unique numbers from 1–10.
Yes within the limits of Math.random(). Each integer in the eligible set has equal probability of being picked on any draw. Without no-repeats, two draws can return the same number — that is correct behaviour for sampling with replacement.
The page only filters by parity (even/odd). For arbitrary exclusion, generate slightly more than you need and filter the result manually, or use a custom range that already excludes the unwanted values.
No. Math.random() is a pseudo-random generator seeded from the page environment. Use crypto.getRandomValues() (or the Random String tool with the cryptographic option) for security-relevant draws like keys, tokens, or audited lotteries.
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