What is CSPRNG?

A cryptographically secure pseudorandom number generator produces output that is computationally indistinguishable from random and cannot be predicted from previous output. In browsers it is exposed as crypto.getRandomValues().

3 tools that work with CSPRNG

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Hash & Crypto Tools2

Password GeneratorGenerate strong random passwords using your browser's cryptographic random source.Random String GeneratorGenerate random strings from a chosen character set — for keys, tokens and test data.

Calculators1

Random Number GeneratorGenerate random numbers in any range, with optional uniqueness — for draws and sampling.

Related terms

Terms that appear alongside CSPRNG on the same tools.

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