We build tools for measuring usability

Discover and test mental models for your information architecture using the world's most advanced UX toolset.


Know why and where people get lost in your content

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Discover how other people organize your content

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Reveal first impressions of designs and screenshots

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Collect, discover & share qualitative research

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Our fabulous customers include MANY THOUSANDS of information architects, interaction designers, usability consultants, web developers, content managers, freelancers and departments inside the world's largest organizations.

...and MANY HUNDREDS OF THOUSANDS of people have already participated in their usability surveys and thereby helped to make things just a bit easier for all of us.

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Remote User Research Methods
for Information Architecture Testing

Tree Testing

Tree testing is a usability technique for evaluating the findability of topics in a website. It is also known as reverse card sorting or card-based classification. Tree testing is done on a simplified text version of your site structure. This ensures that the structure is evaluated in isolation, nullifying the effects of navigational aids, visual design, and other factors.

Tree test with Treejack

Card Sorting

Online card sorting is a simple technique in user experience design where a group of subject experts or “users”, however inexperienced with design, are guided to generate a category tree or folksonomy. It is a useful approach for designing information architecture, workflows, menu structure, or web site navigation paths.

Card sort with OptimalSort

First Impressions

First impression testing, or first click testing is a really simple remote usability testing technique for gathering user feedback on your designs and mockups. Upload images or screenshots, assign tasks and find out where people click first. This helps you decide which features to implement or change by testing concepts and wireframes before building them.

First clicks with Chalkmark

You will love remote user testing with Optimal Workshop