Question 1

How random is the list randomization?

Accepted Answer

This tool uses the Fisher-Yates shuffle algorithm with Math.random() as the random source. Math.random() is not cryptographically secure but is suitable for fairness in most non-security applications like random group assignment, raffle order, or presentation order.

Question 2

Can I shuffle the same list multiple times?

Accepted Answer

Yes. Each click of the Randomize button produces a new shuffle. Paste your list once and click as many times as needed to get a fresh random order each time.

Question 3

Is this suitable for lottery or security applications?

Accepted Answer

No. Math.random() is not a CSPRNG (Cryptographically Secure Pseudo-Random Number Generator). For security-sensitive applications, use the random-number-generator or passphrase-generator tools which use crypto.getRandomValues.

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