🎱 Lotto Number Generator

Lotto 6/45 asks you to match 6 numbers out of 45, with jackpot odds of about 1 in 8.14 million. Instead of agonizing over picks every week, this generator creates completely random combinations for up to 5 games at once with a single click. Games are labeled A-E just like a real lotto slip, and the balls are color-coded like the actual draw machine (1-10 yellow, 11-20 blue, 21-30 red, 31-40 gray, 41-45 green).

While the common Math.random() is a predictable pseudo-random generator, this tool uses the browser's cryptographic random number generator (crypto.getRandomValues). Rejection sampling is applied on top to eliminate modulo bias, where certain numbers would appear slightly more often. It is statistically the fairest possible random draw.

The fixed/excluded number feature lets you apply your own strategy. Set birthdays or anniversary numbers as fixed picks that always appear, or mark numbers to avoid as excluded, and the remaining slots are filled randomly. Generated numbers are automatically saved to history (last 20 draws) stored only in your browser, and any combination can be copied with one tap.

Pro tip: since every combination has identical odds, statistical strategies like "hot numbers" are meaningless in practice. That said, avoiding popular patterns (birthday-heavy 1-31 picks, sequential runs) can reduce the chance of splitting a jackpot with others. Above all, lottery is entertainment — play responsibly and within your means.