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Front-End Developer Test for Hiring the Best Front-End Experts

A front-end developer test is a technical assessment to evaluate candidates' practical and technical skills. It gauges programming proficiency in HTML and CSS programming languages, enabling employers to assess candidates' ability to develop user interface components of web pages.

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Inside This Front-End Developer Test

The front-end developer test assesses a candidate's proficiency in building the basic structure of websites and understanding of presentation, formatting, styling, and layout. It helps evaluate a candidate's front-end web development skills and fundamental concepts of CSS.

Designed by subject matter experts, this front-end web developer assessment has been holistically designed to also assess an applicant's knowledge along with applied programming skills.

This 60-minute test includes 18 MCQs (Multiple Choice Questions) and one coding problem to be solved in real-time on Mercer| Mettl's front-end simulator.  

The following roles can be primarily evaluated using this test: 

  • HTML and CSS Developer 
  • Web Developer 
  • Front-End Developer 


A front-end developer creates and oversees the design and practicality of web applications using an amalgamation of UX, UI (User Interface), programming abilities and visual designs. By consolidating HTML, JavaScript, and CSS - the building blocks of front-end development - they can forge every component a user sees and engages with on a website. These components usually include sliders, drop-down menus, buttons, and content optimization for faster page loading speed. If not for front-end developers, who build a user interface with back-end codes, the web would not be what it is today. These accomplished professionals are also required to check front-end functionality. By obtaining data from automated and manual testing efforts, they help improve client-side functionality. In addition, they perform test runs to safeguard that the back-end integrations work synchronously with front-end functionality and debug. 

The demand for highly accomplished developers has never been higher, and employers are hard-pressed to find the best tech talent to deliver on projects. However, finding the crème de la crème from a vast talent pool with almost similar qualifications and skills is challenging for organizations. So, companies must devote substantial time and effort to attract, identify, and onboard the candidates with desired attributes. For example, imagine that a recruiter "X" has posted a job description for hiring a front-end developer on various online portals and has also allied with candidate sourcing vendors. Consequently, X had a large applicant pool interested in this opportunity. 

Given that X has received 500 plus CVs from interested applicants, it is implausible to invest the time or the resources to organize these many interviews in a stipulated period. Add to that the possibility of errors while conducting CV-based filtering spontaneously. Not to mention the probability of good talent not being considered because of some implicit bias or other factors, such as a poorly formatted CV or education gaps. The likelihood of selecting candidates with nicely embellished CVs but no relevant technical skills is always there. In Toto, finding the best from hundreds of candidates is no mean feat!  

In a competitive landscape where companies of all sizes are looking for highly skilled front-end developers for their project requirements, how do they screen out the best candidate efficiently and effortlessly? That is where the front-end developer test plays a pivotal part in assessing and hiring top tech talent without subjectivity or bias. A front-end development assessment allows employers to determine candidates' technical skills by competency level, technical field, and proficiency in programming languages and frameworks.

Which skills are crucial for front-end developers?  

The skills required for front-end developers to function effectively include some of the following:

  • Proficiency in HTML, CSS, JavaScript, and jQuery.  
  • They must be skilled in graphic design applications (e.g., Adobe Illustrator).  
  • Knowledge of SEO (Search Engine Optimization) principles will always come in handy  
  • Excellent problem-solving skills are a must-have   
  • Strong interpersonal skills for rich, meaningful interactions with teams, bosses, and users  
  • Understanding of server-side CSS  

Specifically, in this front-end developer coding test, the following skills are reviewed in-depth: HTML and CSS web development skills on a front-end simulator (FES), HTML + CSS knowledge, and adaptability.  

What to expect with this assessment? 

From a meticulously created set of questions to assess essential subsets of the skills needed to be a front-end developer, you will be able to gauge the true potential of candidates in creating the basic framework of websites along with their understanding of formatting, presentation, layout, and styling. Furthermore, these tests help assess candidates' applied programming skills, adaptability, and receptivity to other feedback.  


This Front End Developer Test is a part of following Skills Libraries

Hire smarter and faster with this front-end skills assessment. Evaluate candidates' proficiency in HTML, CSS, and JavaScript through domain and simulator-based assessments. Streamline your hiring process with Mercer| Mettl online front-end test.

Front End Developer Test Competency Framework

Get a detailed look inside the test

Front End Developer Coding Test Competencies Under Scanner

Frontend Development



This technical test evaluates the candidate's strength in the following subskills; HTML - Elements, HTML5 - Elements, HTML5 - Semantics, HTML5 - Multimedia, HTML5 - Attributes and HTML - Attributes.


This front-end test evaluates the candidate's proficiency in the following subskills: Text application in CSS, CSS Margins, CSS3- Backgrounds Application, CSS3- Borders, CSS3- Text Application, CSS3 - Shadows - Application, CSS- Transformation Application and CSS3- Transformations Application.

Front End Simulator

This front-end skills assessment includes practical hands-on coding questions for assessing a candidate's HTML and CSS web development skills on a front-end simulator.

Customize This Front End Developer Coding Test

Flexible customization options to suit your needs

Set difficulty level of test

Choose easy, medium or hard questions from our skill libraries to assess candidates of different experience levels.

Combine multiple skills into one test

Add multiple skills in a single test to create an effective assessment. Assess multiple skills together.

Add your own questions to the test

Add, edit or bulk upload your own coding questions, MCQ, whiteboarding questions & more.

Request a tailor-made test

Get a tailored assessment created with the help of our subject matter experts to ensure effective screening.

The Mercer | Mettl Front End Developer Test Advantage

The Mercer | Mettl Edge

  • Industry Leading 24/7 Support
  • State of the art examination platform
  • Inbuilt Cutting Edge AI-Driven Proctoring
  • Simulators designed by developers
  • Tests Tailored to Your business needs
  • Support for 20+ Languages in 80+ Countries Globally

Front End Developer Coding Test Can Be Setup in 4 Steps

Step 1: Add test

Add this test your tests

Step 2: Share link

Share test link from your tests

Step 3: Test View

Candidate take the test

Step 4: Insightful Report

You get their tests report

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Frequently Asked Questions (FAQs)

We can do so selectively. Please write to us about your request; we will be glad to assist.

It seems inconceivable for businesses to go about their operations without their websites, which is why front-end developers are one of the highly coveted hires for most organizations. Their code, design aesthetics, UX proficiency, and ability to coordinate with their organizations' tech and design teams dictate whether the end-user will perceive that company as a brand. When it comes to prescreening candidates for such roles, here are some steps to consider:  

  • Examine their work from all angles when evaluating their portfolio  
  • Their GitHub account speaks volumes about their work  
  • Make the candidates undergo some live testing   
  • Glance through their Stack Overflow history to track their coding journey  
  • Deploy automated testing solutions, like Mercer|Mettl, for prescreening candidates  
  • Assign them a hypothetical project  
  • A real-time coding test will help them demonstrate their programming prowess  

Testing is critical to ensure that a project is bug-free and running smoothly. Therefore, a front-end developer must be skilled in testing and debugging codes.

Given below are some of the most common interview questions:  

  • How do you maintain the user-friendliness of your website or web application?  
  • What learning resources do you rely on to stay abreast of the latest front-end development trends?  
  • What previous techniques have worked for you to improve website performance?  
  • Which version control system do you use?  
  • Can you please explain progressive rendering? 
  • Can you please define stringify? 
  • What elements does the CSS Box Model have?  
  • How do we differentiate between the attribute and property?  
  • What is the best approach to optimize a front-end page?  
  • What is meant by the anonymous function in JS?

Yes, they do! Front-end developers work at the intersection of design, technology, and programming to code a website's appearance and run tests for debugging.

We have customized frontend developer assessment reports in the past based on client requirements. Please write to us with such a request, and we would be glad to work out a solution for you.

Employers usually require these skills in a front-end developer: Web Development, Typescript, JavaScript, CSS3, AngularJS, and jQuery.

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