Affinity Diagram Maker — Free AI Affinity Map

How it works

Describe your data points

Tell us your ideas, observations, or findings. No organization needed — just list everything and let the AI find the patterns.

AI builds the clusters

MyMap's AI groups your items into natural themes and categories — with clear labels for each cluster and logical groupings that reveal hidden patterns.

Refine and export

Move items between groups, rename clusters, or ask AI to re-sort with different criteria. Export as PNG or PDF when you're done.

What is an Affinity Diagram?

An affinity diagram is a sense-making tool that organizes large sets of unstructured information into natural groupings based on their relationships and themes. Originally developed by Japanese anthropologist Jiro Kawakita (also called the KJ Method), it transforms chaotic collections of ideas into clear, themed clusters.

Affinity diagrams are a staple of design thinking, UX research, agile retrospectives, and quality management — used whenever teams need to make sense of qualitative data.

Why affinity diagrams work

Bottom-up organization lets themes emerge naturally from the data rather than forcing a predefined structure

Pattern detection reveals connections and themes that aren't obvious when items are listed linearly

Team alignment gives groups a shared understanding of key themes and priorities

Action-oriented output translates raw observations into categorized insights ready for decision-making

Affinity diagrams are most valuable after user research, brainstorming sessions, survey analysis, and any activity that generates a large volume of unstructured input.

MyMap's AI generates a complete affinity diagram from your raw ideas — with themed clusters, clear labels, and logical groupings, ready to refine and act on.

Common questions

Is the affinity diagram maker free?

Yes — you can create affinity diagrams for free without signing up. Free accounts get a generous number of AI messages per month. Upgrade to Pro for unlimited diagrams.

Can I customize after generation?

Absolutely. Every item, group, and label is editable. You can move items between clusters, split or merge groups, or ask AI to re-organize with a follow-up message.

When should I use an affinity diagram?

Affinity diagrams are ideal after brainstorming sessions, user research interviews, retrospectives, or any time you have a large collection of unstructured ideas that need organizing. They help teams find consensus on themes and priorities.

How many items can I include?

There is no hard limit. Affinity diagrams work best with 20-100+ items — enough to reveal meaningful patterns. The AI handles the grouping regardless of volume, organizing even large datasets into clear, manageable clusters.