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.

Skills you'll gain: UI Components, Responsive Web Design, Code Reusability, Web Development Tools, Application Deployment, Database Management, Web Applications, Data Store, Databases, Frontend Integration, Authentications, Application Development, JavaScript Frameworks, Email Automation, Restful API, Web Design, Front-End Web Development, TypeScript, Application Programming Interface (API), Web Language
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Vue.JS, Application Deployment, UI Components, JavaScript Frameworks, Data Access, Frontend Performance, Web Analytics and SEO, Android Development, Development Environment, Server Side, Data Management
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: API Testing, Test Script Development, Scenario Testing, Software Testing, Test Automation, Maintainability, Verification And Validation, User Interface (UI), Security Testing, Test Data, Scalability, Debugging, Code Reusability, Authentications, Compliance Reporting, Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Object Oriented Programming (OOP), Debugging, Object Oriented Design, JSON, Program Development, Data Structures, Code Reusability, Python Programming, Microsoft Visual Studio, Development Environment, Scripting, Maintainability, Integrated Development Environments, Package and Software Management, Authorization (Computing), Programming Principles, Computer Programming, Web Scraping, Application Programming Interface (API)
Beginner · Specialization · 3 - 6 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Data Structures, Algorithms, Performance Tuning, Other Programming Languages, Functional Design, Performance Testing, Unsupervised Learning, Computer Programming
Intermediate · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Prompt Patterns, Vibe coding, Generative AI Agents, AI Workflows, Code Review, AI Personalization, Google Workspace, Software Development Tools, Software Development, Responsible AI, Application Deployment, Generative AI, Software Engineering, Artificial Intelligence, Design Software, Front-End Web Development, React.js, Web Development, Javascript
Beginner · Course · 1 - 3 Months

Skills you'll gain: Flutter (Software), Data Persistence, JSON, Data Store, UI Components, User Interface (UI), Operational Databases, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Database Application, Databases, Debugging, Application Development, Data Access, Mobile Development, Program Development, Cloud API, Application Programming Interface (API), Context Management, Data Mapping
Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Ajax, Web Design and Development, Java Platform Enterprise Edition (J2EE), jQuery, Cascading Style Sheets (CSS), Web Applications, Scripting Languages, Javascript and jQuery, Web Development, Java, Hypertext Markup Language (HTML), Middleware, Model View Controller, Javascript, Front-End Web Development, Hibernate (Java), Service Oriented Architecture, Back-End Web Development
Intermediate · Course · 1 - 3 Months

Skills you'll gain: WordPress, Ajax, Development Environment, Content Management Systems, Content Management, Secure Coding, Web Development, Data Management, Web Design and Development, PHP (Scripting Language), Database Management, Dashboard Creation, Cascading Style Sheets (CSS), Data Security, Application Security, Javascript
Intermediate · Specialization · 1 - 4 Weeks

University of Leeds
Skills you'll gain: Web Language, Content Management Systems, Web Development, Web Content Accessibility Guidelines, HTML and CSS, Hypertext Markup Language (HTML), Full-Stack Web Development, Data Ethics, Web Development Tools, Front-End Web Development, Intellectual Property, Systems Architecture, Back-End Web Development, Recruitment, Computer Architecture, Data Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, Context Management, Event-Driven Programming, Web Applications, JavaScript Frameworks, UI Components, Javascript
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Unsupervised Learning, Unstructured Data, Marketing Analytics, Text Mining, Deep Learning, Model Evaluation, Machine Learning, JSON, Data Processing, Natural Language Processing, Data Preprocessing, Model Training, Python Programming
Build toward a degree
Intermediate · Course · 1 - 3 Months