Discover how people categorize information
Structure your content in a way that makes sense to the people who use it. Card sorting uncovers your users’ mental models, so you can create an information architecture that works.
Save time with automated analysis
Get your time back, OptimalSort helps you find themes in your card sort data in minutes. Quickly gather actionable insights using seven different analysis methods including Dendrograms and the Similarity Matrix. Identify common groups at a glance with comprehensive and vibrant visualizations.
Provide the best participant experience even when you’re not there
OptimalSort delivers your participants an intuitive, enjoyable online card sort experience. Your unmoderated card sorts run in the background, while you focus on other work. Or use OptimalSort in a moderated setting in person or online, the choice is yours.
Make confident design decisions based on data not assumptions
OptimalSort removes guesswork and unvalidated opinions by providing you with detailed insights straight from your users. Share the results with stakeholders and team members to get everyone on the same page and moving in the right direction.
Take a tour of OptimalSort
Get results in hours with in-app recruitment
Find and recruit high quality participants with instant, in-app access to our panel of over 239 million participants. For highly targeted participants use our custom recruitment service.
Learn more about card sorting and OptimalSort
Explore our other tools
Tree testing
Find the user insights you need to build a site structure that works for the people using it.
Qualitative research
Capture and make sense of all your research notes, usability tests and observations collaboratively.
First-click testing
Test design prototypes with users quickly and easily — meaning faster iterations, feedback, and turnaround.
Online surveys
Understand your customers and answer those burning questions.
Start card sorting with OptimalSort
Already have an account? Log in