Request HotBits (Legacy Insecure Server)

Generate random bytes (maximum 2048).




API key:   ?
(No API key required)   ?


As of the end of 2022, the HotBits Radioactive Random Number Generator service has been retired. Please see the “HotBits Radioactive Generator Retired” page for additional information. You can request random data from the secondary on-chip random source using your API key with “R” as the first character instead of “H”.

Use Secure Server


HotBits Main Page

How HotBits Works

HotBits Hardware Description

Statistical Tests of HotBits Data

by John Walker