Is this a truly random simulation?

It uses your browser's random number generator, which is suitable for games and casual use but not for cryptographic purposes.

Coin Flip Simulator

Simulate flipping a fair coin one or more times and see the resulting heads/tails count.

Inputs

Results

Try an example

Formula

Each flip is an independent 50/50 random outcome

The Probability Behind Coin Flips, Dice Rolls, and Team Randomization

How fair randomness is generated for coin flips, dice rolls, and random team assignment, and the probability math behind each.

Dice Roller

Roll one or more virtual dice with any number of sides.

Random Number Generator

Generate a random integer between a minimum and maximum value.

Password Generator

Generate a strong, random password with customizable character sets.

Lorem Ipsum Generator

Generate placeholder Lorem Ipsum text for mockups and designs.

Random Letter Generator

Generate one or more random letters of the alphabet.

Random Team Generator

Split a list of names into randomly assigned teams.