Randomly split a list of players into balanced teams for sports, games, or group work.
Type or paste a roster - players for a game, coworkers for a project - choose how many teams you want, and the tool deals everyone into teams of equal size with a fresh random draw on every click. The split is unbiased: no captain's picks, no alphabetical clustering, no friend groups voting themselves together. The thing people most often get wrong: random does not mean fair-looking. The tool guarantees team sizes balance, but the same two stars can still land on one team by chance, and rerunning is the correct response, not a sign that anything is broken.
A concrete input and expected output from the current implementation.
Input
Maya, Leo, Ada, Kai, Zoe, Sam, Ivy, Max, Ana, Ben, Eli, Nia
Expected output
Team 1 (4): Maya, Leo, Ada, Kai Team 2 (4): Zoe, Sam, Ivy, Max Team 3 (4): Ana, Ben, Eli, Nia
Twelve players split into three teams forces teams of exactly four, because 12 / 3 = 4 with nothing left over. The arrangement shown is one of 5,775 equally likely layouts (12! / (4!^3 x 3!)), so any draw that keeps four players per team is a correct result, and the names will usually land differently when you run it.
On each click, the tool reorders your full list so that every arrangement of the names is equally likely, then assigns them to the number of teams you requested. Because the draw is fresh every time, rerunning almost always changes the split, and the order in which you typed the players has no influence on who ends up together.
Team sizes are fixed by arithmetic before anyone is named. When the count does not divide evenly, teams differ by at most one member: eleven players across three teams is always 4-4-3, with the extra player going to one team. The randomness decides who sits where, never how many sit on each team.
Coincidence, not a bug. Each run is an independent draw that does not remember previous runs, so no pairing is ever excluded in advance. With small rosters the chance is higher than people expect: with 12 players in three teams of 4 there are 5,775 possible layouts, so any specific repeat is a 1-in-5,775 event per rerun. Rerun, or move one player manually.
The names you enter carry no skill information, so the tool balances team size and leaves strength to chance. The reliable way to get skill-spread teams is to rank players yourself and assign them alternately in snake order - strongest to team A, second to team B, and so on - or rerun until a layout looks competitive.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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