Gezidao

Random Number Generator

Cryptographically strong random numbers in any range.

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AHow to use

  1. 01 Set the minimum and maximum values.
  2. 02 Set how many numbers to draw, with optional unique values and sorting.
  3. 03 Click Generate and copy the results.

QFAQ

How random is it? ＋

It uses Web Crypto — the browser's cryptographic random generator — with rejection sampling, not the predictable Math.random.

What does "no repeats" do? ＋

It draws distinct values only — useful for raffles and sampling. The range must be at least as large as the count.

→Related tools

→ Passphrase Generator Generate memorable secure passphrases. → Password Generator Create strong random passwords with adjustable length and character sets. → Password Strength Checker See how strong a password is and how long it takes to crack. → Coin Flip Flip one or many coins and see heads/tails statistics.