Evaluate React, JavaScript, CSS, and UI development skills

Frontend Developer Test

Our frontend developer test assesses the complete range of modern frontend skills: from HTML/CSS fundamentals to React component architecture and performance optimization. Identify candidates who build beautiful, accessible, performant user interfaces.

Move beyond algorithm puzzles with practical UI challenges that reveal how candidates actually approach frontend development—the skills that matter for building great products.

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Frontend developer test interface showing component tree, code editor, and preview panel

Comprehensive evaluation of frontend competencies

Skills Assessed

Our frontend developer assessment evaluates both foundational web skills and modern framework expertise that distinguishes exceptional frontend engineers.

HTML & Semantic Markup

Evaluate understanding of semantic HTML5, accessibility best practices, and proper document structure.

CSS & Modern Layouts

Assess mastery of CSS3, Flexbox, Grid, responsive design, and modern styling approaches like Tailwind.

JavaScript Fundamentals

Test core JavaScript knowledge including ES6+, DOM manipulation, async programming, and event handling.

React & Component Architecture

Evaluate React proficiency including hooks, state management, component patterns, and performance optimization.

Responsive & Mobile-First

Assess ability to build interfaces that work flawlessly across all device sizes and orientations.

Accessibility (a11y)

Test knowledge of WCAG guidelines, ARIA attributes, keyboard navigation, and inclusive design principles.

Practical assessments for frontend roles

Test Components

Our frontend developer test combines multiple assessment types to thoroughly evaluate candidates' UI development abilities, from component building to full feature implementation.

Performance, testing, and quality

Advanced Topics

Beyond core skills, assess understanding of performance optimization, testing strategies, and building production-ready frontend applications.

Why companies use CodeSubmit for frontend hiring

Benefits for Hiring Teams

Join companies that use practical assessments to build high-performing frontend teams that deliver exceptional user experiences.

See Real UI Work

Move beyond whiteboard exercises to see how candidates actually build user interfaces.

Evaluate Design Implementation

Test ability to translate designs into pixel-perfect, responsive implementations.

Assess Modern Skills

Evaluate proficiency with React, TypeScript, and modern frontend tooling.

Simple process, comprehensive evaluation

How the Frontend Test Works

Select Challenge Type

Choose from UI component, React application, or CSS layout challenges. Customize for junior, mid-level, or senior roles.

Invite Candidates

Send assessment invitations. Candidates get access to a development environment with React, TypeScript, and modern tooling pre-configured.

Review Submissions

Review code quality, component architecture, and UI implementation. Get AI-assisted analysis of code patterns and best practices.

Conduct Live Sessions

Use CodePair for live coding sessions where you can see candidates build UI components in real-time and discuss their approach.

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4-step assessment workflow: select challenge, invite candidates, review submissions, conduct live sessions

Start assessing candidates with practical UI challenges

Ready to Hire Better Frontend Developers?

Get started in minutes with our frontend developer test. Access our library of React challenges, CSS exercises, and full-stack frontend assessments.

Build frontend teams that deliver beautiful, accessible, performant user experiences.

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