The whiteboard design challenge framework you can rehearse
98 real whiteboard challenge examples and a clock that runs like the real interview. Five phases, 45 minutes: clarify the problem, commit to a user, map the journey, diverge and converge, then sketch and name trade-offs under time pressure.
The whiteboard itself works best on a desktop — everything else here reads fine right where you are.
← the actual tool, not a screenshot
Nobody blanks because
they lacked an article
They blank because it's minute twelve of the whiteboard exercise, the marker is in their hand, an interviewer is watching in silence, and they have never once done this under those exact conditions.
Reading about the whiteboard design challenge is scouting. Practice under the clock is training. They are not the same activity, and only one of them changes what happens in the room.
It takes about five timed runs before the format stops being scary. Most candidates do zero. That's the entire gap this site exists to close.
Built for UX design candidates preparing for whiteboard interviews, the library trains the skills these sessions actually test: problem framing, prioritisation, communication, and trade-off judgment — because interviewers score your design process and thought process, not the final drawing.
minute 4
Designing too early
Sketching before the problem is framed. The interviewer lets you keep going — and quietly marks the framing box zero.
minute 11
Designing for "everyone"
No committed user means no decision afterwards can be right or wrong. It reads as evasive, not inclusive.
minute 39
Zero trade-offs named
The most-missed dimension on real scorecards — and the cheapest to fix. Volunteering one costs a single sentence.
Rehearse it like a performance,
because that's what it is
Solve on the clock
45 minutes, five phases, live cues telling you what a strong candidate is doing right now — clarifying, mapping, converging, sketching.
Open the timer →Compare to a worked answer
Then read what strong actually sounds like, minute by minute — including the trade-offs volunteered before the interviewer asks.
See a walkthrough →Score yourself honestly
Five dimensions interviewers actually mark: framing, user, prioritisation, trade-offs, communication. Find the one you keep dropping.
See the rubrics →While you talk, the interviewer
is filling in a scorecard
Every other site gives you a list of prompts. We publish what's on the scorecard — for all 98 challenges — because interviewers value your design process over the final solution. Here's a real one.
| Dimension | Scores 1 | Scores 4 |
|---|---|---|
| Problem framing | Restates the prompt back | Names what duration breaks — trust, search, money |
| User definition | "People who travel" | Commits to one segment, defends it in a sentence |
| Prioritisation | Eight ideas, no choice | Kills two directions out loud, keeps one |
| Trade-offs | None mentioned | Volunteers the cost and who pays it, unprompted |
| Communication | Narrates every stroke | Structures, checks in, uses the board as an argument |
What "strong" actually sounds like, minute by minute
Not tips. A transcript-style worked answer for each whiteboard design challenge: what to say at 0:04, what to draw at 0:19, which trade-off to volunteer at 0:38 before anyone asks for it.
Three are free and ungated. Read them first, then decide if the rest are worth paying for. We think that's the honest order.
"Good — because that means I'm going to spend most of my time on what happens when it doesn't work. That's where locks live or die."
One line, four minutes in, that tells the interviewer you've understood the shape of the problem. Most candidates spend the next forty minutes on an app instead.
"I want to design one specific moment: insufficient funds. No red. No exclamation mark. No noise that turns heads in the queue."
The most human thing in the answer — and the part interviewers remember when they compare notes.
98 whiteboard challenge examples,
organised by the skill you keep dropping
Every UX design whiteboard challenge here comes with its rubric — organised the way you actually self-diagnose. Not by industry, by weakness.
Constraint-shift prompts
One variable moved — duration, age, context. Can you trace what it breaks?
Airbnb long stays · Calendar for freelancers · Grocery store self-checkout · +19
Accessibility-first
Design for the hardest user, and the confident one gets a better product free.
Redesign an ATM · Maps accessibility · Public kiosk · +14
Systems under stress
The success state is invisible; the failure state is a crisis. Design for the crisis.
Smart lock · Password recovery · Contact tracing · +11
Mature-product prompts
A billion users, entrenched habits. Most redesigns are destructive — is yours?
Instagram Stories · Spotify home · TikTok search · +21
Five phases. 45 minutes.
The clock is the coach.
The timer runs the framework for you: five phases, each with live cues telling you what to do and what "stuck" looks like. Sketch user flows and wireframes on the built-in board — sticky notes and rough boxes, exactly like the real room. A whiteboard challenge generator serves a random prompt when you need one, and it beeps at every transition so you feel the time pressure before it's real.
Designers keep this tab open for weeks. Good — that's the habit forming.
Open the timer →draw the X where it breaks — don't narrate every step
Rehearse their questions, not generic ones
Generic fluency isn't company fluency. Premium adds the prompts candidates actually reported, per company, with worked answers for each.
- ◆ 12 recently-reported prompts, dated
- ◆ The loop, stage by stage
- ◆ What their interviewers probe hardest
- ◆ 5 worked walkthroughs on their prompts
Prompts come from candidate reports, cross-checked and dated. When we can't verify one, we don't publish it. You'll never see "Meta asked this" unless someone in a Meta loop reported it.
Everything — every pack, every walkthrough: $49.99 once. No subscription. An interview is an event, not a lifestyle.
See premiumMentoring with designers
who've run the FAANG loop
A 60-minute mock whiteboard interview with a senior product designer who has actually sat on the other side of a Meta, Google or Amazon loop. You solve a real prompt on the clock; they interrupt, probe, and push exactly like the real thing.
Afterward you get written feedback scored against the five-dimension rubric — the specific things to fix before the interview that's actually on your calendar.
- ◆ A real prompt, solved live on the clock
- ◆ Interrupts and follow-ups like the real loop
- ◆ Written feedback on all five scored dimensions
- ◆ The one habit to fix before your interview
You shouldn't. Read first, pay after.
The three best walkthroughs are free and ungated — no email wall, no teaser cutoff. All 98 rubrics are public. The timer needs no account.
If the free material doesn't obviously beat everything else you've found, keep your money. If it does, premium is more of exactly that. And if you buy and regret it: 14-day refund, no questions, one email.
Start with the free walkthroughs →Before you start
What is a whiteboard challenge?
A live design exercise used in product design interviews: you're given an open prompt — design a smart lock, improve airport check-in — and 45 minutes to work through it on a whiteboard while the interviewer watches how you think. It's sometimes called a whiteboard exercise or whiteboarding session. It tests framing, prioritisation and communication, not visual polish.
Whiteboard challenge vs take-home design challenge — what's the difference?
A take-home design challenge gives you days and expects polish; a whiteboard challenge gives you 45 minutes and expects thinking out loud. They're scored differently too — take-homes on craft and completeness, whiteboard exercises on framing, trade-offs and how you handle pressure. Different preparation, and most interview loops only include one of them.
How long is a whiteboard design challenge?
Usually 45 minutes. Some companies run 30; a few onsite loops stretch to an hour. The structure matters more than the length, which is why the timer teaches the whiteboard challenge framework by default: clarify, commit to a user, map the journey, converge, then sketch and name trade-offs.
I can't draw. Am I doomed?
Nobody scores linework. Boxes, arrows and legible labels are the expected output — interviewers are scoring your thinking, not your wrists. Two of our free walkthroughs are drawn deliberately roughly to prove the point.
What if I run out of time?
You stop and summarise. Interviewers expect unfinished work — a whiteboarding exercise is a thinking sample, not a deliverable. Finishing badly reads far worse than stopping cleanly and saying what you'd do next.
How is this different from a list of whiteboard challenge questions?
Prompt lists tell you what might be asked. We publish how each question is scored — the rubric — plus worked whiteboard design challenge examples showing a strong response minute by minute, and a framework for spending the 45 minutes. That is the part that changes your answer.
Your next interview has a
whiteboard in the room
Walk in having already used it five times.