Coin Flip & Dice Roller

Settle decisions with a fair virtual coin and watch the heads/tails counts and longest streaks build up, or roll up to 20 dice of any common tabletop type. Each roll shows the individual results and total, and a history keeps the last 100 rolls. Animations respect your reduced-motion setting.

How to use the Coin Flip & Dice Roller

1. Choose Coin flip or Dice roller.
2. Press Flip (or Flip ×10) to toss the coin.
3. For dice, choose the die type and how many to roll.
4. Press Roll and read the total and history.

Features

• Fair coin with heads/tails percentages
• Current and longest streak tracking
• d4, d6, d8, d10, d12, d20 and d100 dice
• Roll up to 20 dice at once with totals
• History of the last 100 rolls
• Respects prefers-reduced-motion

Benefits

• Make quick, unbiased decisions
• Play board games and tabletop RPGs without physical dice
• Demonstrate probability in class

Frequently asked questions

Is the coin really 50/50?

Yes. Each flip uses a cryptographically secure random number with unbiased selection, and every flip is independent of the previous ones.

Why did I get heads five times in a row?

Streaks are normal in random sequences. In 100 flips a run of five or more of the same side is very likely to appear.

Can I roll dice with other numbers of sides?

The roller offers the standard tabletop dice. A d100 roll gives 1 to 100, and you can use the Random Number Generator for any other range.

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