Random Group Generator
Paste names, choose the number of groups, and generate instantly. Private, and no sign-up needed.
Start with a simple random split, then add balancing, constraints, and multi-round optimization only when your session needs it.
Try the full group optimizer.
Works for classrooms, workshops, and events
Start with a simple random split. When you need more control, GroupMixer grows with you.
Classroom groups
Teachers paste a student roster and create balanced groups in seconds. No learning curve.
Workshop breakout rooms
Split participants into breakout rooms for a single session or rotate across multiple rounds.
Speed networking
Generate multiple rounds where people meet new faces each time. Minimize repeat pairings automatically.
Team projects
Divide a class or team into project groups. Optionally balance by skill, role, or department.
Conference sessions
Assign attendees to parallel tracks or discussion tables while respecting constraints.
Social mixers
Plan icebreaker rounds where everyone meets someone new. Keep certain people together or apart.
Need more control?
GroupMixer is more than a random shuffler. When simple groups aren't enough, unlock advanced rules without switching tools.
Keep certain people together
Ensure friends, co-workers, or pre-assigned pairs always land in the same group.
Keep certain people apart
Prevent specific people from being grouped together — useful for conflict avoidance or diversity.
Avoid repeat pairings
Run multiple rounds where the same two people don't end up together again.
Balance groups by attribute
Use CSV input to balance groups by role, skill level, gender, department, or any custom column.
The expert workspace gives you full control over sessions, constraints, solver settings, and detailed result analysis.
Frequently asked questions
How do I split a list of names into random groups?
Paste your names (one per line) into the text box, set the number of groups or people per group, and click "Generate Groups". Your groups appear instantly.
Is GroupMixer free to use?
Yes. GroupMixer is completely free. There is no sign-up, no account required, and no usage limits.
Does my data stay private?
Yes. All processing happens locally in your browser. Your names and group data are never sent to a server.
Can I add rules like keep-together or keep-apart?
Yes. Open the advanced options to add keep-together groups, avoid-pairing rules, multiple sessions, and attribute balancing. Or use the expert workspace for full control.
Can I create groups for multiple rounds?
Yes. Set the number of sessions in the advanced options and enable "Avoid repeat pairings" to minimize how often the same people end up together.
What is the expert workspace?
The expert workspace gives you detailed control over sessions, constraints, solver settings, warm-start from previous results, and full result analysis. It uses the same powerful solver engine.