How to use
- Click Flip.
- Read heads or tails.
- Flip again as often as you like; the tally counts each result.
Options explained
- Tally
- Counts heads and tails since the page was opened. Over many flips both approach 50%.
Examples
Who goes first. One flip — heads you start, tails they do.
Best of three. Flip three times and compare the tally.
Frequently asked questions
Is it really 50/50?
Yes. Each flip uses the browser's cryptographically secure random generator, so heads and tails are equally likely and previous flips have no influence.
I got heads five times in a row. Is something wrong?
No. Five heads in a row happens about once in 32 attempts. Streaks are normal in random sequences.
Does it work offline?
Yes, once the page has loaded.
Privacy
This tool runs entirely in your browser. Your files and text are processed on your device and are never uploaded to our servers.