This virtual dice generator tool lets you roll 6-faced dice online. You can change the number of dice to roll multiple dice at once. This tool uses a pseudo-random algorithm to generate and display the random number, which is not 100% random but very close to truly random physical dice.
Die (plural - Dice) is a small, throwable object that geometrically looks like a cube with dots marked on each face (to represent numbers). The dots on each face represent numbers from 1-6. They are used to generate arbitrary numbers that can be used in games that use random numbers.