Card Sorter review
A focused free tool for running simple open card-sorting exercises in a browser.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Card Sorter is a free, browser-based React application for usability experiments and task-based web research. It presents a predefined set of 46 cards that participants can arrange into categories. The tool fits individuals and small teams who need a straightforward visual sorting exercise rather than a full research administration suite. It runs on the web and can also be self-hosted from the project repository.
Its main strength is a focused open-sorting workflow. Participants drag cards into category containers, add categories with a plus control, rename headings inline, and collapse or expand category contents. A start-and-pause elapsed timer helps track an exercise, while a page-capture control saves the current view as a downloadable PNG screenshot. These controls keep the activity centered on arranging and documenting a sort without adding unrelated study-management features.
Card Sorter is best suited to simple, individual sessions where the predefined card set and open sorting model match the research task. It does not provide closed or hybrid sorting, participant-management services, hosted study administration, or a statistical-analysis workflow. Teams needing those capabilities should choose a broader card-sorting platform. Documentation is the listed support channel, so organizations seeking managed support or a larger collaboration layer may also prefer another option.
Card Sorter pros and cons
- Where it wins
- Free web tool with cloud and self-hosted deployment options.
- 46 predefined cards with editable, collapsible categories.
- Timer and downloadable PNG screenshots support the exercise.
- Where it doesn't
- Supports open sorting only; closed and hybrid modes are unavailable.
- No participant-management or statistical-analysis workflow is provided.
- Support is limited to documentation.
Card Sorter fact sheet, pricing and score →
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