Certified tool

Random Number Generator

Generate integers in a range, one or many, with optional unique draws.

MinimumMaximumHow many

Unique numbers only

Assumptions

Results are integers. Decimal generation is not offered in this foundation.
Unique mode draws without replacement from the inclusive range.
Selection uses the Web Cryptography API when available. This is not a password tool.
Count is capped at 10,000. Bounds stay within ±1,000,000,000.