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Random Number Generator, also called RNG. Supports "no duplicates" feature if you set the number of results greater than one. The range is 0 ~ 999999, and the max number of results is 1000. You can change the page title if you want. The timestamp is fetched from your operating system. It generates cryptographically random numbers which suitable for most of the cryptographic usages. It utilizes a built-in crypto function ( crypto.getRandomValues ) instead of a popular randomizer ( Math.random ) or a well-known MT algorithm ( Mersenne-Twister ). 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 follow the local laws and the user is responsible for any violations.