Frontend Developer Mock Interview

Practice React, JavaScript, and system design interviews with AI.

Start Frontend InterviewView Questions
AI-Powered Feedback
Real-time Scoring
No Credit Card Required

Practice Real Frontend Developer Interview Questions

Technical

Explain the Virtual DOM and how React uses it

Practice
Technical

What is closure in JavaScript?

Practice
Technical

How would you optimize a slow-loading web page?

Practice
Technical

Implement debounce and throttle functions

Practice
Technical

Explain the difference between == and === in JavaScript

Practice
Technical

How do you handle state management in a large React app?

Practice
Technical

What is the CSS box model?

Practice
System-design

Design a responsive navigation menu

Practice
Behavioral

Tell me about a performance issue you optimized

Practice
Technical

How do you ensure web accessibility?

Practice
See all Frontend Developer questions

Key Skills Evaluated

JavaScript (ES6+)
React / Vue / Angular
HTML & CSS
TypeScript
Web Performance
Responsive Design
Testing (Jest, Cypress)
Accessibility (a11y)

Ready to Ace Your Frontend Developer Interview?

Join thousands of candidates practicing with AI. Get instant feedback and improve your chances of landing the job.

Start Frontend Interview