Free online random number generator, also known as RNG. Supports "no duplicates" feature if you set the number of results to be greater than one. The range is 0 ~ 999999 and the maximum number of results is 1000. You can change the page title if you want. The timestamp is taken from your operating system. It generates cryptographically random numbers suitable for most cryptographic uses. It uses a built-in cryptographic function ( crypto.getRandomValues ) instead of the popular randomizer ( Math.random ) or the well-known MT algorithm ( Mersenne-Twister ). The Mersenne-Twister algorithm does not generate cryptographically secure values and should not be used for cryptographic purposes. No warranty of any kind, express or implied. Please comply with local laws and the user is responsible for any violations.