Generators

Random generators, passwords, and QR codes

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9 available

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Featured picks for quick starts

Generate random numbers within a specified range

Generate secure passwords with custom rules

Enter your options, spin the wheel and get a fair random winner. Supports removing the winner between spins.

All Generators calculators

Generate one or many RFC 4122 v4 UUIDs instantly

Roll virtual dice for games and probability

Flip a fair coin with history

Measure how many times you can click per second. Pick a window, click as fast as you can, and track your personal best.

Measure your visual reaction time in milliseconds over 5 trials. Clicks before the green signal are rejected, so your score is real.

Check every key on your keyboard. Press a key and see it light up on the map, with its event.code and event.key.

Generators calculators — Frequently asked questions

Quick answers about the generators tools on Mathify.

What random tools are included?

Random number, password, dice, coin flip, and UUID generators.

Are passwords generated securely?

Passwords are created locally in your browser using a secure generator.

Can I generate multiple random numbers?

Yes. Set a range and count to generate a list at once.