Chuangge Toolbox

Coin flip

Parabolic toss, spin, and landing—cryptographic randomness, session stats, and history. Space to flip.

Arc toss · fair landing

Flip a coin

A higher, more realistic arc: launch, hang time, fall, impact, and a small bounce—while the coin spins. Cryptographic randomness in your browser. Stats and history below; Space to flip when focus isn’t in a field.

Heads
Tails

No flip yet.

Tip: press Space when focus isn’t in a field to flip again

This session

0

Heads

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Tails

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Total

Recent flips

Your latest results will appear here.

Randomness comes from crypto.getRandomValues—nothing is sent to a server. Refreshing clears stats.

FAQ

Is it really random?
We use Web Crypto random bytes in your browser—not Math.random. Session stats are just for fun on this page.
Why is there almost no animation sometimes?
If your system prefers reduced motion, we skip the spin and show the result immediately.