Group Generator - Random, Balanced & Multi-Round
- Partial attendanceSet which participants attend which sessions instead of assuming everyone is present every round.
- Custom group capacitiesGive each group its own capacity and override those capacities for specific sessions when room sizes or staffing change.
- Session-specific constraintsApply together, apart, pinned, repeat, and balance rules only to the sessions where they matter.
- Weighted soft constraintsAdd preferences that can be violated when needed, then tune their weights relative to other goals.
- Pair encounter targetsTarget how often specific pairs should meet across the schedule, including exact, minimum, or maximum encounter counts.
- Advanced constraint tuningFine-tune repeat limits, attribute-balance modes, penalties, and other constraint details beyond the landing-page controls.
- Solver settingsAdjust runtime limits, deterministic seeds, solver family, and other optimization settings.
- Result analysisInspect score breakdowns, constraint compliance, penalties, and saved results in more detail.
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.
Guides
Practical playbooks for workshops, classrooms, and repeated group assignments.
How to avoid repeat pairings in workshops
When a workshop has several rounds, a plain randomizer often sends the same people back together. This guide shows how to keep the group mix fresh across rounds and when to use GroupMixer instead of reshuffling by hand.
Read guideHow to run speed networking rounds without repeat conversations
Speed networking works best when participants keep meeting new people each round. This guide shows how to structure rounds, avoid obvious repeat conversations, and use GroupMixer when a plain randomizer is not enough.
Read guideHow to make balanced student groups
Balanced student groups often work better than a fully random split, especially when you want a healthier mix of skill levels, roles, behavior patterns, or social dynamics. This guide shows when balancing helps and how to set it up with GroupMixer.
Read guideRandom groups vs balanced groups vs constrained groups
Not every grouping problem needs the same level of control. This guide explains when a simple random split is enough, when balancing gives better outcomes, and when you should use constraints because logistics or relationships matter more than speed.
Read guideHow to split a class into fair groups
When teachers say they want fair groups, they usually do not mean perfectly random ones. They mean groups that feel workable, balanced enough, and less likely to create the same social or skill imbalance every time. This guide shows how to get there without reorganizing the class by hand.
Read guideHow to make random pairs from a list of names
Random pairs are useful for partner work, peer review, drills, coaching conversations, and quick practice rounds. This guide explains how to create pairs, reshuffle pairs, and avoid sending the same people back together when the activity has more than one round.
Read guideHow to assign breakout rooms for online workshops
Breakout rooms work best when participants are assigned quickly and the room mix supports the activity. This guide covers room count, group size, repeated breakout rounds, and when to avoid repeat pairings in remote or hybrid sessions.
Read guideHow to create balanced random teams
A random team generator is useful when you need teams quickly, but many team activities also need a reasonable spread of skills, roles, or experience. This guide explains how to keep the speed of random teams while adding enough structure to make the result usable.
Read guide