IA
Hybrid Card Sorting
A practical information architecture method for testing an existing structure while still letting users show where it needs to change.
How to use hybrid card sorting to validate draft categories, spot gaps in your structure, and refine information architecture with direct user input.
Quick take
If you want the structure of closed sorting with the flexibility of open sorting, use hybrid card sorting.
Related Services
What it is
Hybrid card sorting is a UX serviceUser ResearchUnderstand user behaviour, validate ideas, and make clearer product decisions with evidence you can act on.Open service method that combines open and guideClosed Card SortingTesting whether predefined categories and labels make sense to users so structure and navigation can be validated.Open guide.
Participants are given a set of predefined categories but are also allowed to create new ones if the existing options do not fit.
This approach allows you to test an existing structure while still capturing how users naturally think and organise information.
It balances validation with exploration, making it useful when you have a starting point but are not fully confident in it.
The goal is to refine serviceInformation ArchitectureImprove navigation, content structure, and findability so users can understand where things are and how to move through them.Open service by understanding both glossaryAlignmentAlignment is the shared understanding and agreement between teams, stakeholders, and objectives.Open glossary term and gaps.
Hybrid card sorting is most useful when you have a draft structure, but you still need users to show you where it falls short.
When to use it
Use this method when you have a draft structure but want flexibility.
It is most useful when:
It is less useful when:
Hybrid card sorting is often used between open card sorting and closed card sorting.
Key takeaway
Use hybrid card sorting when you need to test a proposed structure, but still want users to reveal where the structure is incomplete or wrong.
How to run it
Set up properly.
Before you start, be clear on what categories you will provide, whether users can create new categories, and what items will be included.
Ensure instructions make it clear that users can add categories.
Run the method.
Hybrid card sorting is structured but flexible.
Provide users with predefined categories. Allow them to create new categories if needed. Ask them to sort items into categories. Observe grouping and creation of new categories. Capture reasoning and glossaryPatternA reusable solution to a common design problem.Open glossary term.
Focus on both placement and creation glossaryBehaviourBehaviour refers to how users interact with a system, including actions, patterns, and responses.Open glossary term.
Capture and make sense of it.
The value comes from understanding gaps and glossaryAlignmentAlignment is the shared understanding and agreement between teams, stakeholders, and objectives.Open glossary term.
Look across results to identify how well predefined categories work, where users create new categories, glossaryPatternA reusable solution to a common design problem.Open glossary term in grouping and glossaryLabellingLabelling is the practice of naming content, categories, and interface elements in a way that is clear and meaningful to users. It directly affects how users understand and navigate a product.Open glossary term, and items that do not fit existing structure.
Use this to refine and improve your glossaryArchitectureArchitecture refers to the structure and organisation of a system, including how components interact and are designed.Open glossary term.
What to look for
Focus on:
Where it goes wrong
Most issues come from:
If users keep creating new categories, your structure is wrong.
What you get from it
Done properly, this method gives you:
Key takeaway
It helps you evolve your structure rather than guess it.
Get in touch
If this sounds like something you need, we can help you refine your structure so it works for both your business and your users.
No guesswork. No assumptions. Just structure that makes sense.
FAQ
Common questions
A few practical answers to the questions that usually come up around this method.
What is hybrid card sorting in UX?
It is a method that combines predefined categories with the ability for users to create their own.
When should you use hybrid card sorting?
Use it when refining an existing serviceInformation ArchitectureImprove navigation, content structure, and findability so users can understand where things are and how to move through them.Open service.
How is it different from open and closed card sorting?
It sits between both, offering structure with flexibility.
How many participants do you need?
Typically 15 to 30 to identify glossaryPatternA reusable solution to a common design problem.Open glossary term.
Does hybrid card sorting improve UX?
Yes. It helps refine structure based on real user input.