JavaScript React Developer

Create website interfaces, styles, and animations like the ones you know and use everyday.

Période de formation
12 mois à temps plein
Durée de la formation
800 heures supervisées

Une formation flexible 100% en ligne

Démarrez à tout moment votre nouvelle carrière ! Disponible à temps partiel ? Pas de problème, étudiez à votre rythme.

Des projets professionnalisants

Apprenez les compétences clés de votre futur métier en validant 14 projets tirés de cas concrets d’entreprise.

Un accompagnement personnalisé

Bénéficiez de sessions de mentorat hebdomadaires avec un expert du métier.

Certification OpenClassrooms

Décrochez une certification professionnelle et bénéficiez de notre garantie embauché ou remboursé.*

DéveloppementJavaScript React Developer
Certification OpenClassrooms
Période de formation
12 mois à temps plein
Durée de la formation
800 heures supervisées

What is the JavaScript React Developer role?

JavaScript React developers, also known as front-end developers, are in charge of creating dynamic websites using a programming language. They take care of the front-end part, i.e. the visual side of the site, unlike the back-end developer. To find out more, you can read this article on developer jobs.


A front-end developer’s missions typically entails:

  • Understanding the project they’re working on to develop the most satisfying features and interfaces for their client.
  • Implementing mockups with a keen eye for detail and rigorous standards.
  • Using best practices to structure HTML, CSS and Javascript code.
  • Using frameworks such as React to build powerful and modular applications.
  • Using tests to monitor their applications and ensure the highest quality service.
  • Providing technical and functional documentation of the site for their clients and colleagues.
  • Optimizing page load time.

Why take this program?

This program was created by our instructional design team. Our pedagogical method is based on the realization of real-world projects and one-on-one, weekly sessions with a professional web development expert as your mentor.

The idea is simple: to learn effectively, it is important to be active in your learning. Within this path, this involves completing projects based on scenarios from the professional world. Your mission: look for solutions, create your deliverables and present them convincingly in front of your mentor! You will be able to directly apply the experience you gain through your OpenClassrooms program in your future workplace.

The training consists of professional projects of increasing complexity. Each project will allow you to acquire specific skills.

What you will learn

  • Setup your development environment.
  • Implement a responsive layout with HTML5 and CSS3.
  • Ensure the accessibility of a website.
  • Create dynamic web applications with Javascript, React and APIs.
  • Ensure data quality in a web application through testing.
  • Contribute to a code project using agile methodology...

... And much more!

At the end of this training, you will be delivered the JavaScript React Developer OpenClassrooms certification.

Salary of a Front-End Developer

Web development can be a lucrative career with many prospects and income growth opportunities opening up as you continue to acquire more experience. Here is what you can expect to earn in your career as a Front-End Web Developer:

United Kingdom

  • Beginner: £30,000 - £40,000 
  • 2-5 years: £40,000 - £60,000
  • 5+ years: £60,000 +

United States

  • Beginner: $40,000 - $60,000
  • 2-5 years: $60,000 - $80,000
  • 5+ years: $100,000 +

You will be able to work as a React Developer or Front-End Developer, but also as a Web Developer, or Javascript Developer.

This program can be taken as part of an apprenticeship. For more information, please contact us.

Career development

You will also be able to quickly ascend towards other developer jobs using Javascript as your primary programming language. For example, you could become a mobile developer using React Native or a Back-End Developer with Node.js.

As a JavaScript developer, you will be able to evolve in several ways, including :

  • Diversifying your technical skills to become a full-stack developer, i.e. covering both the back end and the front end.
  • By specializing in a particular technology; React in this training but there are plenty of others!
  • After a few years of experience and collaborating with many other developers, you may also choose a more managerial role as a Lead Developer or a CTO.


You will need to provide a certificate not older than 2 years to demonstrate a minimum level of English B2.

Certificates accepted:

  • English Diploma from a secondary institution (private or public) or an accredited higher learning institution
  • Linguaskill minimum score: 160
  • BULATS minimum score: 60
  • TOEIC minimum score: 785
  • IELTS minimum score: 6.5
  • TOEFL iBT minimum score: 88
  • Cambridge FCE / CAE / BEC HIGHER / BEC VANTAGE minimum score or grade: B or 160
  • Certificate from a language center demonstrating a minimum level of B2 (including the number of training hours completed and the company signature or stamp)

Don’t have one of these certificates? Find out where to take an exam.

To be eligible to earn this path's diploma, candidates must demonstrate proof of one of the following prerequisites:

  • an associate's degree, or equivalent, in computer science, web development, or software development
  • or a high school/secondary school degree, vocational certificate, or equivalent, and at least 2 years of professional experience in IT, web development, or software development

All other candidates will need to go through a specific admissions process. These candidates must have:

  • Equipment: Candidates must also have access to a computer (PC or Mac), headphones, a microphone, a webcam, and a good internet connection for mentoring sessions (3.2 Mbps upload and 1.8 Mbps for download). In addition, to master the skills on this path, you will need to:
    • Have at least 8 GB of RAM (16 GB is more comfortable) and 100 GB of storage space available on your computer.
    • Have administrator rights to your computer in order to install required programs.

How will I learn at OpenClassrooms?

Our learning method is unique and revolves around two elements: professional projects and dedicated mentoring sessions.


At OpenClassrooms, learning is project-driven because that’s the fastest way to become proficient. Projects offer hands-on experience so you can hit the ground running when you start your new job.  

The JavaScript React Developer path has a series of projects that you’ll need to complete one at a time with the support of your mentor. You’ll receive a detailed brief with the context, customer requirements and additional details. Then it’s up to you to go and make it real! To do this, you’ll have to be creative, coming up with innovative solutions to the questions at hand.

Want to know more about projects? Read our blog post here.


During your path, you will be assigned a mentor who will offer one-to-one support via weekly video conference sessions. This mentor will offer guidance on your projects, help define objectives and guide you until you reach them. Our mentors are dedicated professionals who are experts in their field and have experience in sharing their know-how with our students.

Votre diplôme

  • OpenClassrooms est un établissement privé d’enseignement à distance déclaré au rectorat de l’Académie de Paris.

  • À l’issue de votre formation, sous réserve de validation de vos compétences, vous obtiendrez le diplôme d’établissement OpenClassrooms « JavaScript React Developer ».

Garantie embauché ou remboursé

  • Vous trouvez un emploi dans les 6 mois après la date de validation du dernier projet de votre parcours.

  • Autrement, nous vous remboursons vos frais de scolarité.*
    Voir les détails

DéveloppementJavaScript React Developer
Certification OpenClassrooms
Période de formation
12 mois à temps plein
Durée de la formation
800 heures supervisées

Une pédagogie basée sur la pratique

  • Obtenez des compétences clés en validant des projets professionnalisants.

  • Progressez à l'aide d'un expert du métier.

  • Gagnez un véritable savoir-faire ainsi qu’un portfolio pour le démontrer.

Les projets et compétences en détail

projet 1

Take Ownership of Your Learning on the Front-End Path

In our changing world, being skilled in learning is more important than ever. Become an active, autonomous learner to set yourself up for success on this path and in your future career.
8 heures supervisées
Compétences acquises dans ce projet
  • Set up a technology monitoring dashboard
  • Create a training plan
projet 2

Turn Mock-ups Into a Web Page with HTML & CSS

Get started with HTML & CSS by implementing a travel booking platform's website from scratch.
70 heures supervisées
Compétences acquises dans ce projet
  • Integrate web content according to a mockup using HTML & CSS
  • Implement a responsive layout
projet 3

Integrate a mobile website with animations in CSS

Implement the mobile version of this foodtech website with CSS animations.
90 heures supervisées
Compétences acquises dans ce projet
  • Develop a navigation structure for a website
  • Implement design effects using CSS & Sass
  • Ensure design consistency on a website
  • Set up a development environment
  • Track a code project with version control on GitHub
projet 4

Build a Landing Page Using Javascript

Get started with Javascript on this gaming company's website, GameOn. In this first programming project, you'll discover how to code with Javascript from scratch.
30 heures supervisées
Compétences acquises dans ce projet
  • Program using fundamentals of JavaScript
projet 5

Skills Checkpoint: Web Languages Proficiency

Test your skills on HTML, CSS and JavaScript language principles and paradigms;
1 heuresupervisée
Compétences acquises dans ce projet
  • Write HTML, CSS and JavaScript syntax
projet 6

Create an Accessible Website For a Freelancer Sourcing Platform

Delve into Javascript with Fisheye to build this freelance photographer platform. Be sure your code makes this web app accessible to all.
70 heures supervisées
Compétences acquises dans ce projet
  • Develop a modular app with design patterns
  • Ensure the accessibility of a website
  • Manage website events
  • Write maintainable JavaScript code
projet 7

Develop a Search Tool with Bootstrap

Implement a search algorithm for Les Petits Plats, a recipe website. You will use Bootstrap to build the interface and advanced Javascript methods and tools for optimization.
90 heures supervisées
Compétences acquises dans ce projet
  • Develop an algorithm to solve a problem
  • Deconstruct a computational problem
projet 8

Skills Checkpoint: JavaScript Algorithms

Test your skills in Javascript algorithms to be ready for technical tests.
1 heuresupervisée
Compétences acquises dans ce projet
  • Write Javascript syntax using a programming paradigm
projet 9

Debug and Test an HR SaaS

The expense report app, Billed, is experiencing a handful of bugs. You'll have to fix as well as write new unit and integration tests to detect future problems.
60 heures supervisées
Compétences acquises dans ce projet
  • Write unit tests with JavaScript
  • Debug a web application
  • Write a manual E2E test plan
  • Write integration tests with JavaScript
projet 10

Define User Needs for a Tutoring App

A non-profit that tutors children needs your help. Determine their needs and create a plan to tackle them using agile tools such as, User Stories, mock-ups, a Kanban table and use case diagrams.
50 heures supervisées
Compétences acquises dans ce projet
  • Identify functional application requirements based on client needs
  • Create a mockup for a client
  • Manage a code project using agile methodology
  • Model a technical solution for a client using domain models
projet 11

Develop a Web App with React and React Router

Implement the front end of Kasa, a person-to-person, real estate rental app. For this client, you will create components with React and build the routes of your app with React Router.
60 heures supervisées
Compétences acquises dans ce projet
  • Create React components
  • Develop the routes of an application with React Router
  • Initialize a React web app
projet 12

Develop a Dashboard for Analytics with React

Create the consumer-facing dashboard of a sports analytics platform, SportSee. Build graphs and charts with React and use an API to fetch data.
60 heures supervisées
Compétences acquises dans ce projet
  • Produce technical documentation for a web application
  • Develop advanced graphics using libraries
  • Ensure data quality in a web application
  • Interact with a web service
projet 13

Connect to a Back End with an API Using React

Remede Agency needs you to complete their website's code to communicate with the back end. You'll write REST API calls to connect the front end to the back end of the website and model new API endpoints.
100 heures supervisées
Compétences acquises dans ce projet
  • Interact with an API
  • Authenticate to a secure API
  • Create API models
  • Implement a state management system in a React app
projet 14

Convert a jQuery Library to React

Help refactor HRnet's website. You will choose a jQuery library and turn it into a React plugin. Use LightHouse to monitor the performance of your new code.
110 heures supervisées
Compétences acquises dans ce projet
  • Monitor the performance of a web app
  • Code in JavaScript with functional programming
  • Deploy a front-end web app
  • Refactor an application to reduce technical debt

Un accompagnement individuel & privilégié

  • Bénéficiez de sessions individuelles hebdomadaires avec un mentor expert du métier.

  • Progressez rapidement dans vos projets grâce à son excellence dans le partage de son savoir-faire.

La communauté OpenClassrooms

  • Comptez sur une communauté soudée d’étudiants prête à vous aider 24h/24, 7j/7.

  • Partagez vos questions et vos doutes avec des centaines d'étudiants, de mentors et de diplômés sur un réseau social privé.

Comment se déroule un parcours OpenClassrooms ?

Du choix de leur formation au premier jour de leur nouvelle carrière, nos étudiants racontent leur expérience et l'accompagnement qu'ils ont reçu, étape par étape.

Voir le détail des étapes

Financez votre parcours

L’abonnement : une formule flexible et à la carte

Pour tous

Les avantages
  • Date de début et rythme d’études flexibles

  • Sans engagement : arrêtez à tout moment

  • Plus vite vous terminez, moins le coût final est élevé

  • Garantie embauché ou remboursé*

480 € par mois

pour une durée estimée de 12 mois soit 5 760 €

Démarrer mon inscription

Cette formation nécessite un investissement en temps estimé à 1600 heures dont 800 heures supervisées.

La durée totale de la formation se compose de :

  • 800 heures de formation supervisée avec des projets, encadrés par des mentors
  • 800 heures de formation guidée avec des cours et des ressources pédagogiques

La période de formation peut être rallongée en cas de formation à temps partiel.
La durée est estimée et dépend de votre niveau d'entrée en formation, de votre disponibilité, du temps alloué par semaine, de votre capacité et rythme d'apprentissage.

Ce parcours vous intéresse pour votre entreprise ?

Obtenir un devis ou une démo

* Sous réserve des conditions énoncées dans les Conditions Générales de Services

Formation mise à jour le 22 mai 2024