Last updated 2026-05-25

Coin Flip

Flip a virtual coin with verified cryptographic randomness. Free, ad-free, no signup. Perfect 50/50 odds, mobile-friendly.

A coin flip picks heads or tails with exactly 50/50 odds. NamesOnWheel uses crypto.getRandomValues to do the picking — there's no hidden bias toward heads or tails, and you can verify this with the chi-square test on /fairness (set segments to 2). Free, no signup, screenshot-friendly result modal, works offline.

Preset: Coin

Auto-spin

Pick winner(s)

Tip: click a name to rename it · drag to reorder · tap N× to cycle chances · right-click the color dot to reset it.

How to use this picker

1

Tap Spin

The wheel ships preloaded with heads/tails.
2

Read the result

Heads or Tails shown large in the result modal.
3

Best of three? Best of five?

Set 'Pick N winner(s)' to 3 or 5 to flip multiple times in one spin.

Frequently asked questions

Is this really 50/50?

Yes. Two equal-weight entries on a CSPRNG-driven wheel produce exactly 0.5 probability for each. Verify on /fairness with segments=2.

Can I add 'side' as a third option (super-rare edge landing)?

Yes — add a 'Side' line and weight it low: 'Side *0.01'. The wheel honors arbitrary weights.

How does this compare to my browser's Math.random()?

Math.random is seeded once per page and produces predictable sequences. Our crypto.getRandomValues uses your OS's entropy pool — actual hardware randomness.

Is there a max number of flips?

1,000 entries per wheel; 50 picks per spin via 'Pick N winners'. For more, run sequential spins.

Can I weight heads higher?

Yes with *N. 'Heads *2' = 2:1 odds.

Can I screenshot for evidence?

Yes — result modal is clean and ad-free, perfect for screenshots.