Generators
Coin Toss
Flip a fair coin - heads or tails, with session tally.
Coin (₹10)
Session · 0 flips
Flip results will appear here.
About this tool
Click flip to draw heads or tails from an unbiased 50/50 split. Each flip is backed by window.crypto.getRandomValues, not Math.random, so the outcome is cryptographically random. A running session tally shows the head/tail counts and percentages plus a history strip of the last 30 flips - handy for quick decisions or a lightweight probability demo.
FAQs
How is the coin actually fair?
Each flip pulls a 32-bit random integer from window.crypto.getRandomValues (the browser's CSPRNG) and takes the parity bit. Every draw is independent with exactly a 50/50 outcome.
Why does my streak feel biased?
It isn't - human intuition undercounts runs. Over 30 flips it is fully expected to see runs of 4-5 heads or tails in a row. The tally shows the true fraction converging on 50/50.
Does this send anything anywhere?
No. The flip runs entirely in your browser, the result never leaves the tab, and there is no analytics call per flip.