List Randomizer (Shuffle Lines)

Shuffle any list into a random order: names for a raffle, students for presentations, players for teams, tasks, quiz questions or playlist items. Paste lines or comma-separated items, and the randomizer returns a new order using your browser’s secure random generator. You can draw just the first few items, split everyone into groups of equal size, number the result, or enter a seed so that the same order can be reproduced and checked later.

How to use this tool

1. Paste your list, one item per line or separated by commas.
2. Choose how items are separated: lines, commas, words, sentences or paragraphs.
3. Optionally keep only the first few (for winners) or split the list into groups.
4. Leave the seed empty for a fresh random order, or type a seed to make the order repeatable.

Formula

Fisher–Yates shuffle: for i = n − 1 down to 1, swap item i with item j, where j is a uniform random integer from 0 to i

This algorithm gives each of the n! possible orders exactly the same chance, provided the random numbers are unbiased. Without a seed, the numbers come from crypto.getRandomValues with rejection sampling, which removes the small bias of the modulo trick. With a seed, the text is hashed (FNV-1a) into a 32-bit start value for the mulberry32 generator, so the same seed and the same list always produce the same order; that is good for transparent draws but not for secrets. Groups are dealt round-robin from the shuffled list, so sizes differ by at most one.

Example

Eight names split into 2 groups give two teams of 4. Drawing three winners from a list of 50 entries means keeping the first 3 items of the shuffled list; each entry has a 3 in 50 (6%) chance of being picked.