Virtual Coin Flip
Flip a virtual coin with an animation and honest 50/50 odds, single or in bulk, with running statistics. Free, instant, no signup.
Flip
Statistics
Flip the coin to start counting.
Each flip is one bit from the browser cryptographic random source. With enough flips the split converges on 50 percent, which is the law of large numbers in action.
What this tool is for
Heads or tails, decided by the browser cryptographic random source. Flip once for a decision, or flip a thousand times at once and watch the running tally converge on 50 percent, which is a better demonstration of the law of large numbers than any explanation of it.
How to use it
- Press flip for a single toss.
- Or set a count and flip in bulk to see the distribution.
- Read the running totals and percentages below.
Frequently asked questions
Is it really fair?
Yes. A single random bit from the cryptographic source, with no weighting. A real coin is arguably less fair, since physical tosses show a small bias toward the starting face.