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: Web Applications, Web Language, Javascript, UI Components, Front-End Web Development, Web Development, Object Oriented Programming (OOP), Cascading Style Sheets (CSS), Programming Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Spring Boot, React.js, Object-Relational Mapping, Restful API, YAML, Data Access, Web Applications, Application Programming Interface (API), Databases, Application Performance Management, Full-Stack Web Development, Development Environment, Configuration Management, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Software Design, JSON
Intermediate · Course · 3 - 6 Months

Skills you'll gain: React.js, Full-Stack Web Development, JavaScript Frameworks, Restful API, Front-End Web Development, Back-End Web Development, Spring Boot, Web Applications, User Interface (UI), Application Programming Interface (API), Javascript, Data Modeling
Intermediate · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Web Design and Development, Responsive Web Design, HTML and CSS, Front-End Web Development, Cascading Style Sheets (CSS), Web Development Tools, React.js, User Interface (UI), Javascript, Web Servers, Semantic Web, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Cross Platform Development, iOS Development, UI Components, Android Development, Application Development, Application Programming Interface (API), Development Environment, Javascript, Data Storage, Data Management, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Foundry, Cloud Applications, Cloud Platforms, Command-Line Interface, Platform As A Service (PaaS), User Accounts, Cloud Management, Scalability, Application Deployment, Cloud Computing, Web Design and Development, Network Troubleshooting
Intermediate · Guided Project · Less Than 2 Hours

Northeastern University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, Web Design, HTML and CSS, Web Content Accessibility Guidelines, User Interface (UI), Hypertext Markup Language (HTML), Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript, Usability, Web Applications, Semantic Web, Data Validation
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: LangChain, LLM Application, Tool Calling, Agentic systems, Prompt Engineering, Artificial Intelligence, Generative AI, Large Language Modeling, Semantic Web, Data Store
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Web Design and Development, Front-End Web Development, Animations, Javascript, Application Deployment, Interactive Design, Web Content Accessibility Guidelines, User Interface (UI), Maintainability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: CI/CD, Continuous Integration, GitHub, Continuous Deployment, Git (Version Control System), Development Environment, Docker (Software), Security Controls, Automation, YAML, JavaScript Frameworks, Event-Driven Programming
Beginner · Course · 3 - 6 Months

Skills you'll gain: Test Automation, Test Data, Test Case, JSON, System Testing, Scenario Testing, Application Programming Interface (API), Mockups
Intermediate · Guided Project · Less Than 2 Hours