Omikuji Tools Fun & Lottery

Coin Toss — Flip a Coin Online, Instantly

Flip a coin online instantly — heads or tails at a tap. Perfect for quick decisions, game tie-breakers, and choosing who goes first. Supports multiple coins, custom labels, and URL sharing.

Features

When to Use It

Instead of Rock-Paper-Scissors

Settle any two-way choice with friends in an instant.

Binary Decision Making

Can't pick lunch or a destination? Let the coin decide.

Kickoff & First-Move Decider

Fairly determine who goes first in sports or games.

Starting Player in Board Games

Pick the first player for any board game or match.

Privacy

Everything runs entirely in your browser. Coin flip results and label settings are never sent to any server — 100% local.

FAQ

Is it truly random?

Yes. We use JavaScript's cryptographic RNG (crypto.getRandomValues), which is far more secure and unbiased than Math.random().

Is the probability exactly 50:50?

By default, yes — perfectly even odds. You can adjust the probability using the bias feature if you want.

Can I toss multiple times in a row?

Yes — press the button or hit Space to toss again. The last 20 results are saved automatically.

Does it work on mobile?

Absolutely. It works on both desktop and mobile, with tap support and vibration feedback on phones.
Tap the screen or press Space to toss