Coin Flip
Dice Roller
How fair randomness works here
Both tools call your browser's cryptographic random generator, crypto.getRandomValues, rather than a simple predictable formula. That generator draws from the operating system's entropy pool, so each coin flip is an even 50 / 50 split between heads and tails, and each die is equally likely to land on any face from one to six. Past results never influence the next outcome, which keeps every flip and roll genuinely independent and unbiased.
Frequently asked questions
How does the online coin flip work?
Each flip uses your browser's built-in cryptographic random number generator to pick heads or tails with an equal 50 percent chance. The result appears instantly and a running tally of heads and tails is kept for the session.
Is the coin flip and dice roll truly fair?
Yes. The tool uses crypto.getRandomValues, which draws on the operating system's entropy pool rather than a simple predictable formula, so each outcome is unbiased and not influenced by previous results.
How many dice can I roll at once?
You can roll from one up to six dice in a single throw. The tool shows each die's value and the total, which is handy for board games and tabletop role-playing games.
Can I use this to make a decision?
Absolutely. A coin flip is a quick, impartial way to settle a yes-or-no choice or decide who goes first, and a dice roll works well when you need a random number between one and six.
Does it work offline?
Once the page has loaded, the coin flip and dice roller run entirely in your browser, so they keep working even without an internet connection. Nothing you do is sent to a server.
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Disclaimer: This tool is intended for games, casual decisions, and educational use. It is not designed or certified for gambling, lotteries, or any application requiring regulated or audited randomness.