Coin Flip
Get a fair heads or tails result instantly.
In-depth explanation
Flip a virtual coin for a fair heads or tails result. Uses cryptographically strong randomness in your browser. Everything runs locally in your browser — your inputs are not uploaded to produce the result.
Each flip has a 50/50 chance of heads or tails using the Web Crypto API. Flip as many times as you like. Recent flips are tallied on screen.
Once the page is loaded, flips run entirely in your browser. Tweak the inputs above to compare options, then copy or note the result you need.
Each flip is independent: five heads in a row does not make tails “due”. The Web Crypto API is used so this is not a toy Math.random for a raffle among friends — still not a casino-grade certified device.
History on the page is for the session. Refreshing clears it. If you need many random bits, the number generator or dice roller may fit better.
Frequently asked questions
Is the coin flip fair?
Yes. Each flip has a 50/50 chance of heads or tails using the Web Crypto API.
Can I flip more than once?
Yes — flip as many times as you like. Recent flips are tallied on screen.
Does it work offline?
Once the page is loaded, flips run entirely in your browser.
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