JavaScript courses can help you learn programming fundamentals, DOM manipulation, asynchronous programming, and event-driven development. You can build skills in debugging, working with APIs, and creating interactive web applications. Many courses introduce tools like Node.js for server-side development, React for building user interfaces, and Git for version control, showing how these skills come together in real-world projects.

Scrimba
Skills you'll gain: React Redux, React.js, Javascript, Web Development Tools, Middleware, Web Development
★ 4.8 (12) · Intermediate · Course · 1 - 4 Weeks

LearnKartS
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, Web Language, Data Persistence, Scripting Languages, Data Storage, Web Development, Programming Principles, Data Structures, Computational Logic, Software Engineering
★ 4.9 (10) · Beginner · Guided Project · Less Than 2 Hours

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android Studio, Mobile Development, Java, Android (Operating System), Object Oriented Programming (OOP), Mockups, Java Programming, Data Persistence, Application Deployment, JSON, Web Services, Application Design, Object Oriented Design, Restful API, Mobile Development Tools, Application Development, Data Storage Technologies, Software Design Patterns, Instagram
★ 4.6 (1.9K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Front-End Web Development, Responsive Web Design, Bootstrap (Front-End Framework), Web Design and Development, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), User Interface (UI), Web Design, Event-Driven Programming, UI Components, Web Applications, Javascript, User Interface (UI) Design, Animations
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Frontend Performance, Vue.JS, GraphQL, Containerization, Development Testing, Test Tools, Web Frameworks, Unit Testing, JavaScript Frameworks, Docker (Software), Front-End Web Development, Software Testing, Application Deployment, Full-Stack Web Development, Frontend Integration, Software Architecture, Integration Testing, Restful API, Web Applications, Web Development
Intermediate · Course · 3 - 6 Months
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Application Design, Software Design, Software Design Patterns, Functional Design, Other Programming Languages, Event-Driven Programming, Functional Testing, Java, Programming Principles, Performance Tuning, Data Structures, Algorithms
★ 4.5 (3.1K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Angular, Test Automation, Test Script Development, JavaScript Frameworks, Web Development Tools, Application Development, Application Frameworks, Video Game Development, Test Tools, Frontend Integration, Program Development, Development Environment, React.js, Web Applications, Application Design, Application Deployment, User Interface (UI), Game Design, Verification And Validation, UI Components
Advanced · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Responsive Web Design, JSON, User Interface (UI) Design, Color Theory, Cascading Style Sheets (CSS), User Interface (UI), HTML and CSS, Hypertext Markup Language (HTML), Restful API, Web Content Accessibility Guidelines, Event-Driven Programming, Web Design, Typography, API Design, Web Applications, User Interface and User Experience (UI/UX) Design, Application Programming Interface (API), React.js, Javascript, Web Development
★ 4.7 (601) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Node.JS, Full-Stack Web Development, React.js, Authentications, Frontend Integration, Server Side, Cloud Deployment, Application Deployment, Back-End Web Development, Authorization (Computing), Restful API, TypeScript, MongoDB, Content Management Systems, Content Management, UI Components
Advanced · Course · 1 - 3 Months

SkillsBooster Academy
Skills you'll gain: Claude Code, Prompt Engineering, Anthropic Claude, AI Security, Generative AI Agents, Software Development Tools, Software Development, Responsible AI, GitHub, Code Review, Application Deployment, AI Personalization, Generative AI, Software Engineering, Web Development, Artificial Intelligence, Design Software, React.js, Front-End Web Development, Javascript
★ 4.6 (22) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Salesforce Development, Visualforce, Development Environment, Application Development, UI Components, Web Components, Salesforce, Web Applications, Jest (JavaScript Testing Framework), Web Design and Development, JavaScript Frameworks, User Interface (UI), Application Programming Interface (API), Test Script Development, Restful API, Data Access, Cascading Style Sheets (CSS), Event-Driven Programming, Hypertext Markup Language (HTML)
Intermediate · Course · 3 - 6 Months