Quick decisions
Flip a coin
Heads or tails, decided fairly. Flip once, or flip hundreds of times and watch the totals.
No account. No tracking. Your lists stay in your browser.
Coin Flip
Heads or tails?
Quick decisions
Heads or tails, decided fairly. Flip once, or flip hundreds of times and watch the totals.
No account. No tracking. Your lists stay in your browser.
Heads or tails?
Press Flip the coin (or Space). To run an experiment, flip up to 1,000 times at once — Pick shows the batch result and keeps running totals of heads and tails for this page.
The recent-flips strip shows the sequence (H = heads, T = tails), which is a nice way to see how streaky real randomness looks.
Each flip is one unbiased random bit from your browser's cryptographic generator: exactly 50% heads, 50% tails, independent of every previous flip.
The spinning coin is decoration — the face is decided before the animation starts.
Flip 1,000 times and you'll usually see somewhere around 470–530 heads. Exactly 500 is actually uncommon — about a 2.5% chance — because randomness wobbles.
Everything happens in this browser tab. Names and choices aren't uploaded, stored or tracked — a share link only exists if you create one, and its contents live after the#in the address, which browsers never send to a server.