Random Number Generator

1. Set the minimum and the maximum. Both are included: 1 to 6 gives the faces of a die, 1 to 412 covers 412 numbered entries. Negative numbers work, and the range can be a billion wide.
2. Choose how many numbers you need, from 1 to 1,000.
3. Leave "no duplicates" checked when each number may appear once, as with winning entries. Uncheck it to simulate dice or coins, where repeats are normal.
4. Generate. The numbers appear in the order they were drawn. Copy them, or generate again for a fresh set.

The generator refuses two things: a maximum lower than the minimum, and more distinct numbers than the range holds, such as 20 different numbers between 1 and 10.

Each value in the range is exactly as likely as every other. The generator uses crypto.getRandomValues, the source browsers provide for encryption keys, and maps it onto your range so that every value is equally likely. With "no duplicates", a number already drawn is simply rejected and drawn again, which is why the range may be a billion wide: nothing is shuffled or stored beyond the numbers you asked for.

Nothing is sent to a server, nothing is logged, and no seed is reused: two consecutive draws are independent. The same engine draws every free tool on this site, and its tests feed it fixed sequences to check what each draw must return.

• A draw on numbered entries. Number the entries of a form, a sign-up sheet or a printed coupon, then draw as many winning numbers as there are prizes, without duplicates.
• Dice and coins. 1 to 6 with repeats allowed replaces a die; two numbers at once replace two dice.
• A random sample. Draw 50 distinct row numbers between 1 and 5,000 to audit a spreadsheet or pick which orders to check.
• Games and decisions. A page number, a turn order, a random seed for a board game.
• Tests. A thousand values in one click to feed a test or a demo.

If your entries are names rather than numbers, paste them into the random name picker, which draws winners and alternates from a list and removes duplicates itself. If entrants hold several tickets each, the raffle generator weights the draw by tickets and makes sure nobody wins twice.

If the entries are comments under an Instagram or Facebook post, numbering them by hand is where mistakes happen: a deleted comment, a double entry, a comment missed. The Lukky app reads the comments itself through the official Meta authorization, removes duplicates and excluded accounts, draws at random and issues a public certificate. More than 2.5 million draws have been run that way.