Coin Flip
A coin flip tool simulates flipping one or more coins for quick decisions, games, or probability demonstrations. Toolverge flips 1 to 100 coins at once using the browser’s cryptographic random number generator, so results are genuinely unpredictable rather than a pseudo-random pattern.
How it works
- Set the number of flips (1-100).
- Press Flip.
- Read each result and the heads/tails count.
Formula Heads if random < 0.5, else tails, using crypto.getRandomValues
Frequently asked questions
Is this a true 50/50 chance?
Yes — it uses crypto.getRandomValues() to draw a uniform random value and splits it exactly at 0.5, so heads and tails are equally likely on every flip.
Can I flip more than one coin at a time?
Yes — set any count from 1 to 100 and see every individual result plus the heads/tails tally.
Why not just use Math.random()?
crypto.getRandomValues() draws from the operating system’s cryptographic entropy source, avoiding the subtle statistical patterns that a pseudo-random generator can have over very large samples.
Does flipping many coins always give exactly half heads?
No — each flip is independent, so short runs will show natural variance around 50%, the same as a real coin.
Is my flip result stored anywhere?
No. Everything happens locally in your browser.