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.

Microsoft
Skills you'll gain: Responsive Web Design, Git (Version Control System), Web Development, Cascading Style Sheets (CSS), Data Persistence, React.js, Version Control, Web Development Tools, Performance Tuning, Full-Stack Web Development, GitHub, Event-Driven Programming, Application Design, Game Design, Webpack, Software Testing, Unit Testing, Software Development, Development Environment, Javascript
Beginner · Professional Certificate · 3 - 6 Months

American Psychological Association
Skills you'll gain: Decision Making, Behavioral Economics, Public Policies, Diversity Awareness, Compassion, Sociology, Culture, Psychology, Cultural Diversity, Mental Health, Resilience, Critical Thinking, Human Development, Personal Development, Social Sciences, Empathy, Mindfulness, Interpersonal Communications, Relationship Building, Goal Setting
Beginner · Specialization · 3 - 6 Months

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

Skills you'll gain: Pseudocode, Responsive Web Design, Computational Thinking, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, React.js, HTML and CSS, Debugging, Algorithms, Interviewing Skills, UI Components, Web Design and Development, Professional Development, Programming Principles, Jest (JavaScript Testing Framework), JavaScript Frameworks, Web Development Tools, Web Development, Software Development
Intermediate · Specialization · 1 - 3 Months
Skills you'll gain: Django (Web Framework), Frontend Integration, React.js, API Testing, Authentications, Performance Tuning, Scalability, Full-Stack Web Development, Frontend Performance, Unit Testing, Development Testing, Software Testing, Restful API, Javascript, Python Programming
Advanced · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: JavaScript Frameworks, UI Components, Full-Stack Web Development, React.js, TypeScript, Front-End Web Development, Web Development, Web Applications, Frontend Performance, Server Side, User Interface and User Experience (UI/UX) Design, Software Development, Routing Protocols
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Flutter (Software), Mobile Development, React Native, Apple iOS, Mobile Development Tools, iOS Development, Back-End Web Development, Android Development, Application Development, UI Components, Application Deployment, Databases, User Interface (UI) Design, Product Support, Database Management, Google Analytics, Marketing Strategies
Intermediate · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Systems Thinking, Health Systems, Health Policy, Public Health, Policy Analysis, Policy Development, Simulations, Data Analysis Software
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Docker (Software), Containerization, Application Deployment, Command-Line Interface, Development Environment, Nginx, Computing Platforms, Software Installation, Node.JS, Virtual Machines, React.js
Beginner · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Full-Stack Web Development, Front-End Web Development, Server Side, Application Deployment, Back-End Web Development, JavaScript Frameworks, Web Applications, UI Components, Authentications, User Accounts, Database Development, User Interface (UI), Payment Systems
Intermediate · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: Responsive Web Design, Restful API, User Interface (UI) Design, Application Programming Interface (API), Web Development Tools, Database Design, HTML and CSS, API Design, Front-End Web Development, MongoDB, Javascript, Postman API Platform, Bootstrap (Front-End Framework), React.js, UI Components, Ajax, Database Management, OAuth, Frontend Integration, Authentications
Intermediate · Specialization · 1 - 3 Months

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