How Many UX Case Studies Should You Have in Your Portfolio?

More projects do not always create more trust.

Sometimes, they create more noise.

A portfolio with three strong case studies is usually more effective than a portfolio with ten shallow projects.

The real question

The question is not:

“How many projects can I show?”

The better question is:

“How many projects help someone understand my skills?”

Every case study should have a reason to exist.

A useful starting point

For most UX/Product Designers, 2–4 strong case studies are enough.

This usually gives you space to show:

• Different problem types
• Different responsibilities
• Different product areas
• Different strengths
• Growth over time

But each case study needs depth.

When one case study may be enough

One case study can be enough if it is highly relevant, deep, and clearly written.

For example, if you are applying for a fintech product role and you have one strong fintech case study, that may be more useful than five unrelated student projects.

When more case studies help

More case studies can help if they show range.

For example:

• One research-heavy project
• One product strategy project
• One complex UI project
• One shipped product improvement
• One team collaboration case

But range without clarity does not help.

How to choose projects

Use this filter:

• Is the problem clear?
• Was my role meaningful?
• Can I explain important decisions?
• Is there an outcome or learning?
• Is this relevant to the roles I want?
• Can I talk about it confidently in an interview?

If the answer is no, the project may not belong in your main portfolio.

What to avoid

Avoid adding projects just to look experienced.

Avoid projects where your role is unclear.

Avoid visual-only projects unless you can explain the problem and reasoning.

Avoid case studies that feel unfinished without context.

Final thought

Your portfolio is not a storage room.

It is a curated argument for why someone should talk to you.

Related guides

• You may also want to case studies without metrics: read the guide
• You may also want to portfolio presentations for design interviews: read the guide