Random Team Generator
Instantly split a list of names or players into random, balanced teams. Perfect for sports, classrooms, game nights, or any group activity.
Cryptographically secure randomness - fair and unbiased every time
Generate Teams
Enter one name per line or separate with commas.
How to Use This Team Generator
Enter Names
Type or paste the names of all participants. Use one name per line or separate them with commas. The tool automatically detects and counts all names.
Choose Team Count
Set how many teams you want to create. The generator distributes players as evenly as possible, with at most a one-person difference between teams.
Generate and Share
Click Generate Teams to create random groups. Use Shuffle Again for a new arrangement, or Copy Results to share the teams with your group.
How the Algorithm Works
Fisher-Yates Shuffle + Round-Robin DistributionThe team generator uses a two-step process to ensure perfectly fair and balanced randomization:
Step 1: Shuffle all names using Fisher-Yates algorithmStep 2: Distribute shuffled names round-robin across teamsResult: Each team gets floor(N/T) or ceil(N/T) membersThe Fisher-Yates shuffle (also known as the Knuth shuffle) is a well-known algorithm that produces an unbiased permutation of the input list. Every possible ordering is equally likely.
Round-robin distribution assigns players to teams one at a time in a cycling pattern (Team 1, Team 2, ... Team N, Team 1, Team 2, ...). This guarantees that team sizes differ by at most one member.
Random values come from crypto.getRandomValues(), the same cryptographic API used for generating secure passwords and encryption keys.
Frequently Asked Questions
How does the random team generator work?
The generator uses the Web Crypto API (crypto.getRandomValues()) to shuffle your list of names with cryptographically secure randomness. Names are then distributed evenly across teams in a round-robin fashion, ensuring balanced team sizes. If the number of players does not divide evenly, some teams will have one extra member.
Is the randomization truly fair?
Yes. Unlike Math.random(), which uses a pseudo-random number generator that can exhibit patterns, this tool uses the Web Crypto API which provides cryptographically secure random values. Every possible arrangement of teams is equally likely, making the distribution completely unbiased.
Can I enter names separated by commas or new lines?
Both formats are supported. You can enter one name per line, separate names with commas, or mix both styles. The tool automatically detects and handles all these formats. Leading and trailing spaces around names are trimmed automatically.
What happens if the number of players is not evenly divisible by the number of teams?
The generator distributes players as evenly as possible using a round-robin approach. For example, if you have 11 players and 3 teams, two teams will have 4 members and one team will have 3 members. The distribution is always balanced to within one player.
Can I re-shuffle to get different teams?
Yes. Click the "Shuffle Again" button to generate a completely new random arrangement. Each shuffle produces an independent random result, so you can re-shuffle as many times as you like until you are satisfied with the teams.
Privacy Notice
All team generation happens entirely in your browser. Names you enter are never sent to any server, stored, or logged. The tool uses the Web Crypto API for random number generation, ensuring fair and unbiased results every time. You can safely use this for any group activity without privacy concerns.