Flip a virtual coin instantly in your browser. Get fair heads or tails for one coin or a whole batch, with live tally and streak tracking - all processing stays on your device.
Technical Specifications
Entropy source and flip rules used for every throw.
| Specification |
Details |
| Entropy source |
Web Crypto API (crypto.getRandomValues) - one unbiased random bit per coin |
| Odds |
Exactly 50/50 heads or tails on every coin; each coin is an independent draw |
| Coins per flip |
1 to 100 coins per throw; batch coins count individually toward tally and streaks |
| Session tally |
Running totals for flips, heads, and tails since the page loaded or Clear was clicked |
| Streaks |
Current unbroken run plus the longest run per side across the whole session |
| Animation |
Decorative CSS coin spin; the text result updates instantly and honors reduced-motion settings |
| Processing location |
100% client-side JavaScript in your browser memory; nothing is uploaded |
| Export |
Copy result to clipboard, copy any recent flip, or download a plain-text session report |
| Usage limit |
None - flip unlimited coins for free, no signup required |
Understanding Coin Flips
A coin flip is the simplest fair random trial: two outcomes, equal odds, no memory. Because each throw is independent, the coin never compensates - five heads in a row makes the sixth flip exactly 50/50 again. That independence is what makes flips trustworthy for decisions and useful for teaching probability.
Settling decisions fairly
One coin answers any either-or question: who serves first, which movie plays, which team kicks off. Call your side before clicking, then read the result - heads or tails, no arguments. For choices with more than two options, roll group size with the Dice Roller or draw a position with the Random Number Generator instead.
Batch flips and probability
Flipping 10 or 100 coins at once shows the law of large numbers in action: small batches swing wildly, while big batches settle near half heads. Teachers use this to demonstrate variance, and teams use batch flips for transparent draws where everyone can verify the split. Every coin in a batch still draws its own independent random bit.
Streaks and the gambler's fallacy
Long runs feel meaningful but are normal: in 100 flips, a streak of 6 heads somewhere is expected, not suspicious. The tracker shows your current run and the session's longest runs per side so you can watch this happen live. Remember the fallacy - after HHHHH, the next coin is still exactly half heads, because the coin keeps no score.
Honest limitations
This tool flips fair two-sided coins only: no weighted coins, no best-of series scoring, and no elimination brackets. Throws are capped at 100 coins per click to keep the page instant. Results are random, not advice - for anything with real stakes, agree on the rules of the flip before throwing.
Privacy and Client-Side Security
Privacy Guarantee: All flipping occurs locally inside your browser. Your settings, flips, and streaks are never transmitted, stored, or recorded on remote servers.
Many online flippers fetch results from a server, which exposes decisions and draws to a third party and adds delay to every throw. TinyToolzz keeps everything in-page: random-bit sampling, tallying, streak math, and history run with plain JavaScript in your tab's memory.
Because nothing is uploaded, there is no waiting, no account, and no copy of your flips retained anywhere. Your values exist only in the tab's memory and are discarded when you close the page or click Clear.