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.

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, User Interface (UI), Heat Maps, Data Visualization Software, Interactive Data Visualization, Real Time Data, Big Data, Geospatial Mapping, Data Manipulation, Data Transformation, Apache Spark, Spatial Data Analysis, Web Applications
Mixed · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Systems Thinking, Health Systems, Health Policy, Public Health, Policy Analysis, Policy Development, Simulations, Systems Analysis
Mixed · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), React.js, Authentications, Performance Tuning, Scalability, Full-Stack Web Development, Unit Testing, Development Testing, Software Testing, Development Environment, Restful API, Javascript, Python Programming
Advanced · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: TypeScript, Event-Driven Programming, Javascript, JavaScript Frameworks, Pseudocode, Computational Thinking, JSON, Web Development, Web Applications, Data Import/Export, Application Development, Mobile Development, Debugging, Algorithms, Data Structures, Object Oriented Programming (OOP), Node.JS, Unit Testing, React.js, Web Development Tools
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Docker (Software), Azure DevOps, Restful API, Cross Platform Development, Microservices, Containerization, User Interface and User Experience (UI/UX) Design, DevOps, UI Components, ASP.NET, iOS Development, CI/CD, .NET Framework, Unit Testing, Software Testing, Android Development, Version Control
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Flutter (Software), Mobile Development, React Native, Apple iOS, iOS Development, Android Development, UI Components, Application Deployment, Databases, User Interface (UI) Design, Product Support, Google Analytics, Marketing Strategies
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: JavaScript Frameworks, Restful API, Application Programming Interface (API), React.js, Authentications, OAuth, Server Side, Back-End Web Development, Databases, User Interface (UI), Cloud-Based Integration, Application Deployment, Development Environment
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Prompt Engineering, Generative AI Agents, Tool Calling, User Interface (UI), LLM Application, Agentic systems, User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, Human Computer Interaction, OpenAI, Artificial Intelligence
Intermediate · Course · 1 - 4 Weeks

Corporate Finance Institute
Skills you'll gain: Financial Trading, Financial Market, Market Data, Economics, Capital Markets, Market Dynamics, Financial Policy, Market Trend, Banking, Investment Management, Forecasting
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Node.JS, Full-Stack Web Development, User Interface (UI), Application Deployment, MongoDB, Angular, Back-End Web Development, Front-End Web Development, User Interface (UI) Design, Web Applications, JavaScript Frameworks, Restful API, Web Development, Secure Coding, Authentications, Authorization (Computing), Scalability
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Bootstrap (Front-End Framework), Full-Stack Web Development, JavaScript Frameworks, Web Applications, Database Management, Software Architecture, Database Design, Development Environment, Software Testing, NoSQL, Application Frameworks, Application Security, Authentications, Middleware, Performance Tuning, Semantic Web, Authorization (Computing), Scalability
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: AI Product Strategy, Generative AI, Strategic Thinking, Business Strategy, Growth Strategies, Business Planning, Customer experience strategy (CX), Technology Strategies, Customer Insights, Strategic Planning, Productivity Software, Operational Efficiency, Case Studies
Beginner · Course · 1 - 4 Weeks