Flip a coin or roll one or more dice instantly — with a running history log of your results.
It uses JavaScript's random number generator, giving each side an equal 50/50 chance, suitable for games, decisions, and general randomization needs.
Roll between 1 and 6 standard six-sided dice simultaneously.
Yes, both coin flips and dice rolls are logged in a history list so you can review previous results.
No, the history log only persists for your current browser session. Closing or refreshing the page clears it, since nothing is saved to a server or stored permanently.
The slider is capped at 6 dice to keep the display clean and readable. For larger quantities, roll in multiple batches and add the totals together.
Yes, both the coin flip and dice roll use a uniformly distributed random function, giving every outcome an equal chance, just like a fair physical coin or die.
This tool is built specifically around standard six-sided dice. For other die types, such as a twenty-sided die used in tabletop RPGs, Logrith's Random Number Generator can simulate any custom range.
This tool provides both a simple coin flip (heads or tails) and a multi-dice roller (1-6 standard six-sided dice), each with a running history log so you can track previous results. Useful for games, decision-making, tabletop gaming, or settling friendly disputes.
Both the coin flip and dice roll use JavaScript's built-in random number generator, which produces a uniformly distributed random value each time — meaning heads and tails are equally likely, and each die face (1 through 6) has an equal chance of appearing on every roll, matching the behavior of a fair physical coin or die.
A frequently debated point in probability circles is whether a physical coin flip is truly a perfect 50/50 split — some research has suggested very slight biases depending on how a coin is flipped and caught, related to its starting position. A digital coin flip sidesteps that debate entirely: it's generated from a uniformly distributed random value with no physical starting bias, momentum, or catching technique involved, which makes it, if anything, closer to a theoretically "fair" 50/50 outcome than an actual physical coin toss. The same logic applies to the dice roller — there's no risk of a die landing on an edge, rolling off a table, or being subtly weighted, since each face is simply assigned an equal probability in code. For situations where perceived fairness genuinely matters, like settling a dispute between two people, a digital flip or roll can actually be the more trustworthy option precisely because there's no physical object either side could suspect of being tampered with.
A running history log serves a few practical purposes beyond simple novelty. For games that require tracking cumulative results — like keeping score across several rounds, or verifying no one's claiming a different outcome than what actually happened — having a visible, timestamped-in-order log settles any dispute instantly. It's also useful for anyone demonstrating basic probability concepts, since watching the actual distribution of heads/tails or dice totals accumulate over many trials is a more convincing illustration of statistical concepts like the law of large numbers than any single flip or roll could be on its own.
All randomization happens directly in your browser — nothing is sent to a server, logged remotely, or stored. Your history log exists only in your current browser session and disappears the moment you close or refresh the tab.
When rolling more than one die, this tool shows both each individual die's result and the sum total of all dice combined, since different games need different information. A game that cares about matching specific numbers, like certain board games checking for doubles, needs to see each die's face individually. A game that just needs a combined numeric outcome, like many tabletop RPG damage rolls, cares mainly about the total. Showing both at once means the same roll works for either style of game without needing to manually add up the numbers yourself.
A coin flip is the natural choice whenever a decision genuinely has just two outcomes — yes or no, option A or option B, who goes first. A dice roll fits better when there are more than two possibilities, or when you specifically need a numeric outcome rather than a binary one — choosing among six options, generating a random score, or simulating a specific game mechanic that calls for a six-sided die. Reaching for the right tool for the actual decision at hand, rather than defaulting to whichever is more familiar, keeps the randomization matched to how many genuinely different outcomes the situation calls for.