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Flip a coin

Flip a coin, or a hundred at once, and see heads, tails and the longest run, with a best of three or five. Free, with no account or uploads.

Flip a fair coin

Heads and tails are exactly as likely. Flip many at once, or play best of three or five under More options.

Press Flip and the result shows here.

How it works and help
Drawn by your browser’s cryptographic generator, the one that makes encryption keys, without bias. Nothing is sent anywhere.

A little help along the way

Follow these steps. Every option is explained underneath. Everything happens in your browser; nothing is sent anywhere.

  1. Say what you needA number is the usual. Dice, a coin, letters, cards from a shuffled deck and lottery numbers are the others.
  2. Set the range or the countChoose 1 to 10, 1 to 100 or 1 to 1,000, or your own smallest and largest number, and how many you want.
  3. Press the buttonPick, Roll, Flip or Draw. Press it again for another.
  4. Copy or downloadMany numbers can be copied or saved as a text file, one a line.

Questions people ask

Is the coin flip fair?
Yes. Heads and tails each come from your browser's cryptographic generator with exactly the same chance. A real coin is very slightly more likely to land the way it started.
Can I flip many coins at once?
Yes, up to 10,000. You see how many heads and tails, and the longest run of each.
Can I play best of three?
Yes: under More options, choose best of three or five. Coins are flipped until one side has won most of them.

This page is the Random number generator, opened for this one job; every other tool it has is one press away. Each of its settings is explained on the Random number generator's own page.

Read the step-by-step guide

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