Classroom
Random Group Generator
Deal a class into balanced working groups in a single draw. Group sizes always stay within one of each other.
Click the deck or press Space
Saved on this device only.
Weights detected. Alice x3 is 3 times as likely.Add x3 to an entry for 3 times the odds.
Every draw is logged with the time and the seed that produced it.
Nothing drawn yet. Spin the wheel and results will appear here.
Add entries to start tracking who gets picked.
Sorted least-picked first, so the people being missed are always at the top. Counts persist between visits.
The winner is locked in before the wheel moves. These three values let anyone confirm the result wasn’t changed afterwards.
SealedStep 1 · Before
Commitment
Not sealed yet
Show this to your audience before you spin.
Step 2 · After
Secret seed
Revealed once you spin
Proves the result was fixed in advance, not chosen after.
Step 3 · Check
Anyone can verify
Plain SHA-256, no account needed. Send the receipt to anyone who asks.
About this tool
How it works.
Set the number of groups and deal. All 16 names go out round-robin, so nobody ends up in a group of two while another has six. Re-deal as often as you like, because the assignment is invisible until the card turns over, which shuts down most of the negotiating. Export CSV if you want a record of who worked with whom.
Everything is editable. Replace the list with your own, weight an entry by adding x3 after it, or switch draw modes above the entry box. Nothing is saved to a server, so your list stays in this browser.
What people use it for
- Splitting a class into project groups
- Making lab pairs
- Breaking up a chatty table
Tip
Deal in front of the class rather than arriving with the groups already made, because watching it happen removes most of the pushback before it starts.
Is it free?
Yes. This and all 52 other tools on the site are free with no account, no subscription, and no usage limit. You can use it in class, at work, in a giveaway, or on stream without asking permission.
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