It uses the browser's crypto-backed pseudo-random source when available.

Can I get unique values?

Yes with a 'no duplicates' option — useful for lottery numbers.

Any bias in the results?

No — the mapping is uniform across the range.

This version doesn't accept a seed.

n = floor(random · (max − min + 1)) + min.

Example

min 1, max 10 → returns something like 7.

Is it truly random?: It uses the browser's crypto-backed pseudo-random source when available.
Can I get unique values?: Yes with a 'no duplicates' option — useful for lottery numbers.
Any bias in the results?: No — the mapping is uniform across the range.
Can I seed it?: This version doesn't accept a seed.