React JS courses can help you learn component-based architecture, state management, and routing. You can build skills in creating interactive user interfaces, optimizing performance, and managing application state with tools like Redux. Many courses also cover testing frameworks such as Jest and React Testing Library, enabling you to ensure your applications are robust and reliable.

Board Infinity
Skills you'll gain: Web Components, Cascading Style Sheets (CSS), HTML and CSS, Angular, Hypertext Markup Language (HTML), Responsive Web Design, Frontend Performance, Front-End Web Development, Bootstrap (Front-End Framework), Web Content Accessibility Guidelines, Web Design, Web Design and Development, React.js, UI Components, Web Analytics and SEO, JavaScript Frameworks, Web Development, Semantic Web, Browser Compatibility, User Interface and User Experience (UI/UX) Design
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Spring Boot, Configuration Management, API Gateway, JUnit, Java Programming, Java, Application Design, Unit Testing, Middleware, Service Oriented Architecture, Software Design Patterns, Authentications
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Web Development, JavaScript Frameworks, Web Applications, React.js, Serverless Computing, Restful API, Application Programming Interface (API), Server Side
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Front-End Web Development, Frontend Performance, Responsible AI, Data Ethics, Frontend Integration, Generative AI, Code Review, User Interface and User Experience (UI/UX) Design, Prompt Engineering, Software Documentation, UI/UX Strategy, Test Automation, Test Tools, HTML and CSS
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Javascript, Software Design Patterns, Data Management, Data Structures, Prototyping, Web Development, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Front-End Web Development, Application Development, Application Design, Web Development, Transaction Processing, User Interface (UI), Development Testing, Cryptography, Emerging Technologies, HTML and CSS, Software Architecture, User Interface (UI) Design, Experience Design, Javascript, Application Deployment, Software Development Tools, Scalability, Data Management
Intermediate · Course · 1 - 4 Weeks

Politecnico di Milano
Skills you'll gain: Socioeconomics, Epidemiology, Crisis Management, Health Technology, Health Policy, Social Sciences, Infectious Diseases, Social Work, Public Health, Telehealth, Mental Health, Health Informatics, Surveys, Data-Driven Decision-Making, Data Science, Artificial Intelligence
Beginner · Course · 1 - 3 Months

Skills you'll gain: Vue.JS, JavaScript Frameworks, Front-End Web Development, Web Applications, UI Components, Web Design and Development, Hypertext Markup Language (HTML), Application Programming Interface (API), User Interface (UI), Event-Driven Programming, Data Validation, Data Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Large Language Modeling, Retrieval-Augmented Generation, LLM Application, Embeddings, Agentic systems, Application Development, Data Pipelines, Data Integration, Development Environment
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Blockchain, User Interface and User Experience (UI/UX) Design, Cryptography, Secure Coding, Application Security, Web Development Tools, React Redux, Encryption, User Experience Design, Key Management, Application Design, Cryptographic Protocols, Application Development, Web Applications, Software Development Tools, Legal Technology, Vulnerability Assessments, Frontend Integration, Data Security, Program Development
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: User Interface and User Experience (UI/UX) Design, Blockchain, Web Development Tools, React Redux, User Experience Design, Application Design, Application Security, Application Development, Web Applications, Software Development Tools, Frontend Integration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Full-Stack Web Development, Order Management, Responsive Web Design, Web Applications, JavaScript Frameworks, React.js, Payment Processing, Authentications, User Interface (UI), Data Validation, Dashboard, Database Development, Data Integrity, User Accounts, Product Management
Intermediate · Course · 1 - 3 Months