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.

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Skills you'll gain: Restful API, SQL, React Native, Database Management, Databases, Application Programming Interface (API), API Design, Relational Databases, Data Persistence, Mobile Development, Data Storage Technologies, Data Management, Application Development, Authentications
★ 4.7 (69) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Docker (Software), Containerization, Web Design and Development, Restful API, User Interface (UI) Design, Node.JS, Application Deployment, MongoDB, Database Management, Databases, JavaScript Frameworks, Web Applications, Web Development, Web Development Tools, Database Application, Server Side, Back-End Web Development, Full-Stack Web Development, Javascript
★ 4.2 (33) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: GitHub Copilot, Integrated Development Environments, Microsoft Visual Studio, AI Enablement, Development Environment, Debugging, HTML and CSS, React.js, Cascading Style Sheets (CSS), Software Installation
★ 4.4 (50) · Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Exploit development, Penetration Testing, Security Strategy, Security Testing, Application Security, Vulnerability Assessments, Code Review, Vulnerability Management, Secure Coding, Authorization (Computing), Exploitation techniques, Java, Security Controls, Java Programming, Patch Management, Dependency Analysis, Docker (Software), JSON
★ 4.4 (68) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java, Java Programming, Eclipse (Software), Object Oriented Programming (OOP), Development Environment, Object Oriented Design, Integrated Development Environments, Computer Programming, Program Development, Virtual Machines, Software Installation
★ 4.4 (84) · Intermediate · Course · 1 - 3 Months
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Programming Principles, Data Structures, Functional Design, Object Oriented Programming (OOP), Other Programming Languages, Object Oriented Design, Computational Logic, Command-Line Interface
★ 4.8 (66) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 3 Months

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
★ 3.7 (27) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: HTML and CSS, GitHub, Mockups, User Interface and User Experience (UI/UX) Design, Version Control, User Interface (UI), Front-End Web Development, UI/UX Strategy, UI Components, Git (Version Control System), Web Design and Development, Cascading Style Sheets (CSS), Web Components, Figma (Design Software), Application Deployment, React.js, Frontend Integration, Web Design, Web Development, Software Development
★ 4.7 (62) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Webpack, Frontend Performance, Search Engine Optimization, Web Development Tools, Web Analytics and SEO, Performance Tuning, Build Tools, Debugging, Usability Testing, Web Development, Software Testing, Test Tools, Front-End Web Development, Functional Testing, Test Automation, Continuous Monitoring, Development Testing, Computer Programming Tools, JavaScript Frameworks, WordPress
★ 4.5 (39) · Intermediate · Course · 1 - 3 Months

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Skills you'll gain: React Native, Mobile Development, GitHub, Git (Version Control System), UI/UX Strategy, Version Control, User Experience Design, User Interface (UI) Design, Wireframing, UI Components, React.js, User Flows, Data Store, Data Access, Development Environment, Data Persistence, SQL
★ 4.8 (47) · Intermediate · Course · 1 - 4 Weeks

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