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
Problem — for whom, what goes wrong, how do you know? One paragraph.
Research — what you did (and with how many people), what you learned, what surprised you.
Directions — two or three concepts, sketches or wireframes, and why you chose.
Iterations — what you tested, what did not work, what you changed. This is the heart.
Interface — the final screens, large, in context (phone, desktop).
Effect — numbers if you have them; otherwise reactions, a pilot, what the client did with it.
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.