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AI React interviewer
Hooks, re-renders, state and performance — a React interview that asks why, not just what, and scores how clearly you answer.
Free 10-minute interview with a full report. Paid plans run full-length sessions.
React interview questions you might get
A sample of the starting questions. The live interview follows up on your answer, so no two sessions go the same way.
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Why does this useEffect run in an infinite loop, and how do you fix it?
What it tests: Dependency arrays.
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Why are array indexes bad keys in some lists?
What it tests: Reconciliation understanding.
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When does useMemo make things slower?
What it tests: Performance judgment.
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Context re-renders every consumer on change. How do you avoid unnecessary renders?
What it tests: State architecture.
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Design a reusable data table component. What props would you expose?
What it tests: API design for components.
How a session works
About 20–30 minutes from setup to report. End any time and you still get feedback on what was covered.
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Set your target
Pick a role, level and stack. Add a job description or your resume if you want questions about your real projects.
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Answer live
Speak or type. The interviewer follows up on thin answers, raises the difficulty when you're doing well and switches to code when it fits.
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Read the notes
A report scores every competency, quotes the answers that cost you, and gives you a prep plan for the next session.
A report that quotes you, not a pat on the back
Every score links back to something you actually said.
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Competency scores
Weighted to the role you picked, so a system design gap counts more for a senior backend role than for a frontend junior.
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STAR check on every story
See which part of each behavioral answer was missing — usually the Result.
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How you sounded
Filler words, hedging, "I" versus "we", and whether you cited real numbers — measured from your words, and compared between the first and second half of the interview.
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A prep plan
The two or three things to practice next, and a skill graph that tracks them across sessions.
Competencies — sample report
STAR — "Tell me about a missed deadline"
How you sounded
Questions
Does it cover Next.js?
Add Next.js to your stack in the setup to include server components, routing and data fetching.
Is it for juniors?
Yes. Choose Junior difficulty to start with fundamentals.
What if I get stuck?
You can request a hint during the session. Hints are recorded in the report so you know where you needed help.
Is it free to try?
Yes. Each month you get a free interview of up to 10 minutes with its scored report. Paid plans add full-length interviews, every track and the full 360 report.