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UX/UI portfolio: case studies that show how you think

Updated 21 October 2026 · 3 min read

In short

A UX/UI portfolio consists of three to four deep case studies, not a gallery of screens. Each case study shows the problem, the research, the iterations, the final interface and the effect — in that order, with an image for every step and an honest reflection at the end.

Why screens alone are not enough

Anyone can imitate a pretty screen. What a studio or product team wants to know: do you understand the problem, can you research, can you justify decisions and do you work iteratively? You cannot see that in a final screen; you see it in the road towards it.

Three to four case studies

Depth beats breadth. Choose:

  • One project with real research — interviews, observation, a test with users.

  • One project with a clear interface decision — navigation, form, onboarding.

  • One project with a measurable effect — faster, fewer errors, higher conversion, or a concrete reaction from users.

  • Optional: one free or speculative project that shows what you make when nobody asks.

The structure of a UX case study

  1. Problem — for whom, what goes wrong, how do you know? One paragraph.

  2. Research — what you did (and with how many people), what you learned, what surprised you.

  3. Directions — two or three concepts, sketches or wireframes, and why you chose.

  4. Iterations — what you tested, what did not work, what you changed. This is the heart.

  5. Interface — the final screens, large, in context (phone, desktop).

  6. Effect — numbers if you have them; otherwise reactions, a pilot, what the client did with it.

  7. Reflection — what you would do differently now.

This is a specialised version of the general [case-study structure](/en/guides/how-to-write-a-case-study).

Images

  • Wireframes and sketches may be rough; they prove process.

  • Final screens sharp, in a device frame, at full width.

  • One image that puts "before and after" side by side says more than three paragraphs.

  • Short videos or loops of interactions work well; keep them under ten seconds.

Pitfalls

  • A gallery of thirty screens. Nobody reads it.

  • Research that leads nowhere. If you did interviews, show which decision changed because of them.

  • "We" without "I". Name your role, especially in team projects.

  • Only success. A test that failed and what you did next is more convincing than a flawless story.

  • Jargon. A double diamond on every page does not replace content.

Presentation

A UX portfolio may itself be a well-designed product: clear navigation, fast loading, readable on a phone. Choose a calm setting in which the screens stand out. In Folyra the Studio engine works well for interface work; the Frame engine (black, video as the hero) if you have many moving prototypes. See the example portfolio of [Milo Vermeer](/en/examples/milo-vermeer), a fictional maker of titles, 3D and motion identities.

Frequently asked questions

How many case studies belong in a UX portfolio?
Three to four, worked out in depth. One strong case study with research, iterations and effect weighs more than ten shallow ones.
Does a UX case study have to contain numbers?
If you have them, yes. If not, describe what happened: a test with five users, a pilot, the reaction of the client. Concrete matters more than quantitative.
Can I use a school assignment as a UX case study?
Yes. Name it as a school project and put the emphasis on your research and iterations. A fictional client is not a problem, a fictional result is.
How long may a UX case study be?
Longer than for graphic work: 400 to 800 words is normal, provided every step has an image and the reader can jump with headings.

Turn it into a portfolio right away.

Folyra asks, per project, what a strong case study needs and builds the page while you type. Start free, no credit card.