Classroom Group Generator: Fair Student Groups Fast

A classroom group generator splits your students into fair, random groups in seconds, so you’re not the one deciding who works with whom. Paste your class list, choose the number of groups or the group size, and generate. Every student has the same chance of any group, sizes stay even, and you can keep support pairs together or split up the pair who never stop talking.

You’ve made your groups. Here’s how to use the teacher-specific controls and how to answer the “why am I with them?” question with a straight face.

Make student groups in three steps

1. Paste your class list. One name per line, or straight from your register with commas. Duplicates get removed, so a copy-paste slip won’t put a student in twice.
2. Choose groups or group size. Set the number of groups (six tables) or the people per group (four per group). Uneven class sizes balance out so groups differ by one student at most.
3. Generate. Project the result, reroll if you want a different mix, or set your keep-together and keep-apart rules first.

Here’s a class of 28 split into 7 groups of 4:

The controls built for a classroom

Keep support pairs together. Pin a student to a teaching assistant, a buddy, or a friend who helps them settle. Add them to keep-together and they stay in the same group no matter how you reroll.

Break up cliques. Two students who turn every group task into a private chat? Add them to keep-apart and they’ll always land in different groups. Same for a pairing that tends to go off-task.

Group size that fits the activity. Threes for a discussion, fours for a build, sixes for a station rotation. Set the size and the tool makes as many groups of that size as your class allows.

Numbers mode for a quick sort. If your students already have register numbers, split 1 to 30 into groups without typing names at all.

Reroll for balance. If a draw stacks all the quiet students together, reroll. Each draw is a fresh, fair shuffle. You keep the one that works for the room.

Answering “why am I in this group?”

This is the real reason random beats hand-picking. When you choose groups yourself, every complaint lands on you. When the tool draws them, you can honestly say the computer shuffled everyone and no one got picked or left out. Kids accept “it was random” far more easily than “I decided.”

For extra trust, use the share link. It reopens the exact same groups, so if a student or parent asks, you’ve got a record showing every student had the same odds. Nothing was rigged.

If you’re arranging desks rather than work groups, the same fair-shuffle idea applies. And when you need students in twos for peer work, the random pair generator matches partners and handles odd numbers by making one group of three.

Fair groups without the favouritism

Some teachers worry random means unbalanced, all the strong readers on one table. A few things help. Reroll until the spread looks right; you’re the judge. Use keep-apart to separate students who shouldn’t cluster. For ability-mixed groups, you can pin one student per group as an anchor with keep-together, then let the rest randomize around them.

The point isn’t that random is perfect every time. It’s that random plus a couple of nudges is faster and fairer than sorting 30 names by hand, and it takes the blame off you.

How the randomization works

The tool shuffles your class with Fisher-Yates, a standard method where every possible ordering is equally likely, then deals students into groups one at a time to keep sizes even. Twenty-nine students into six groups gives sizes of 5, 5, 5, 5, 5, and 4. Your keep-together and keep-apart rules run first, then everyone else fills in randomly around them.

It all runs in your browser. Student names never leave your device and are never uploaded, which matters when you’re handling a real class list. The privacy policy spells that out, and the about page explains the method in more detail.

Teachers also use this for PE and gym classes, where the same tool makes fair sides for games. If you’re building competition brackets for a class tournament, the tournament bracket generator takes your groups from there.