Coin Flip
Flip one or many coins online using a cryptographically secure random number generator. Free and private, right in your browser.
Flip a virtual coin instantly, or run a batch of dozens or hundreds of flips at once to see the spread of heads vs. tails, handy for settling a quick decision or for checking randomness over many trials.
How to use it
- Set how many coins you want to flip (1 for a quick call, more for a batch)
- Hit flip and watch the result animate
- Check the heads/tails tally if you ran a batch
Frequently asked questions
- Is this a true random flip or is it fixed?
- Each flip uses your browser's random number generator with 50/50 odds. There's no bias, seed, or pattern, and results aren't stored or sent anywhere.
- Can I flip more than one coin at once?
- Yes. Set the count to flip a batch (say, 20 or 100 coins) in one go and see the full list of results plus the heads/tails tally.
- What's it useful for besides settling an argument?
- Quick randomized decisions, picking who goes first, simulating probability for a stats or coding exercise, or generating a batch of trials to check how close real flips land to 50/50.
- 1
Nothing is uploaded
The file never leaves your device. There is no server to send it to, so there is nothing to leak, log, or subpoena.
- 2
No signup, no limits
No account, no email, no daily cap, no watermark, and no paid tier waiting behind the third file.
- 3
Works offline
Load the page once and it keeps working with the network off, because all the work was always happening locally.