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.

Illinois Tech
Skills you'll gain: Javascript and jQuery, jQuery, Responsive Web Design, Web Development, Version Control, Web Design, Cascading Style Sheets (CSS), Web Design and Development, Hypertext Markup Language (HTML), HTML and CSS, Web Frameworks, GitHub, Web Applications, Javascript, Web Development Tools, Git (Version Control System), Infrastructure Architecture, Network Architecture, Network Infrastructure, Application Frameworks
★ 4.6 (19) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Angular, Cascading Style Sheets (CSS), JavaScript Frameworks, UI Components, Front-End Web Development, Web Applications, Hypertext Markup Language (HTML), Web Development, Development Environment
★ 4.2 (49) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Retrieval-Augmented Generation, Model Context Protocol, Agentic Workflows, Prompt Engineering, Anthropic Claude, Application Programming Interface (API), Prompt Patterns, Prompt Engineering Tools, LLM Application, JSON, AI Integrations, Generative AI Agents, AI literacy, Tool Calling, Generative AI, Scripting, Token Optimization, Document Management, Context Engineering, Agentic systems
★ 3.6 (25) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Frontend Integration, Web Applications, API Design, User Interface (UI), Databases, GitHub, Dashboard Creation, Data Validation
★ 4.6 (53) · Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: ASP.NET, Object Oriented Programming (OOP), Object Oriented Design, Web Design and Development, Application Frameworks, Frontend Integration, Programming Principles, API Design, Middleware, Back-End Web Development, Object-Relational Mapping, Model View Controller, Event-Driven Programming, User Interface (UI), Cascading Style Sheets (CSS), Maintainability, Code Reusability
★ 4.2 (49) · Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Model View Controller, .NET Framework, JSON, Application Programming Interface (API), API Design, Application Frameworks, Web Services, Middleware, Back-End Web Development, Extensible Markup Language (XML)
★ 4 (69) · 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, Professional Development, Programming Principles, Web Presence, JavaScript Frameworks, Web Development Tools, Web Development, Javascript, Software Development
★ 4.5 (42) · Intermediate · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: Anthropic Claude, Prompt Engineering, LLM Application, Generative AI, Large Language Modeling, Multimodal Prompts, Cloud API, AI literacy, Artificial Intelligence, Responsible AI, Application Programming Interface (API), Cloud Deployment
★ 4.3 (38) · Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), Web Applications, Web Development, Expense Reports, Back-End Web Development, Expense Management, Application Development, Database Application, Data Visualization, Business Process Automation, Chart.js, Data Modeling, Business Logic, Development Environment, Data Security, GitHub, Javascript, Project Documentation, Git (Version Control System)
★ 4.3 (8) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Blockchain, Frontend Integration, Transaction Processing, Event-Driven Programming, Front-End Web Development, JavaScript Frameworks, Event Monitoring, Development Environment, Web Development, Web Applications, Program Development, Secure Coding, Web Development Tools, React.js, Emerging Technologies, Application Development, Javascript
★ 4.8 (78) · Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: React.js, Routing Protocols, Code Reusability, JavaScript Frameworks, Frontend Performance, Web Content Accessibility Guidelines, UI Components, Debugging, Javascript, Context Management, Authentications, Data Management
★ 4.8 (35) · Advanced · Course · 1 - 3 Months
Universidad Austral
Skills you'll gain: Mobile Development, Cross Platform Development, React Redux, iOS Development, Continuous Integration, Apple iOS, Test Automation, Unit Testing, Data Persistence, User Interface (UI), Development Testing, CI/CD, Angular, UI Components, User Interface (UI) Design, TypeScript, Animations
★ 3.7 (23) · Beginner · Course · 1 - 4 Weeks