HTML, CSS, and JavaScript courses can help you learn web page structure, styling, and interactivity, along with responsive design and accessibility practices. You can build skills in creating layouts, implementing animations, and optimizing user experiences across different devices. Many courses introduce tools like code editors, version control systems, and browser developer tools, that support testing and refining your projects. By mastering these skills and tools, you’ll be well-equipped to develop engaging websites and applications.

University of Colorado Boulder
Skills you'll gain: Verification And Validation, Systems Design, Software Design, Computational Logic, Computer Engineering, Embedded Systems, Hardware Architecture, Simulations, Test Automation
Intermediate · Course · 1 - 4 Weeks

American Museum of Natural History
Skills you'll gain: Climate Change Programs, Climate Change Mitigation, Social Sciences, Environmental Issue, Climate Change Adaptation, Socioeconomics, Economics, Policy, and Social Studies, Environment, Scientific Methods, Environmental Science, Physical Science, General Science and Research, Media and Communications, Hydrology, Mathematical Modeling, Model Evaluation
Mixed · Course · 1 - 3 Months

Berklee
Skills you'll gain: Music, Musical Composition, Media Production, Instrumental Music, Automation, File Management, Editing, Electronic Media
Beginner · Course · 1 - 4 Weeks

Universidad Austral
Skills you'll gain: Operating Cost, Cost Accounting, Cost Management, Cost Estimation, Management Accounting, Profit and Loss (P&L) Management, Financial Analysis, Case Studies, Product Strategy, Decision Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Musical Composition, Music, Post-Production, Instrumental Music, Media Production, Creativity, Editing
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: HTML and CSS, React.js, ASP.NET, Restful API, .NET Framework, Web Applications, Web Services, Front-End Web Development, JSON, Application Development, Model View Controller, Program Development, Javascript, Development Environment, Back-End Web Development, API Design, Web Development, Microsoft Visual Studio, Software Design Patterns, Cascading Style Sheets (CSS)
Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Electrical Safety, Electrical Systems, High Voltage, Electronic Components, Safety Standards, Control Systems, Basic Electrical Systems, Thermal Management, Failure Analysis, Energy and Utilities, Electrical Engineering, Manufacturing Processes, Materials science, Chemical Engineering, Chemistry, Requirements Analysis
Intermediate · Course · 1 - 3 Months
Duke University
Skills you'll gain: Materials science, Prototyping, Engineering, Scientific, and Technical Instruments, Laboratory Techniques, Chemistry, Manufacturing Processes, Micrometer, Image Analysis, Chemical Engineering
Mixed · Course · 1 - 3 Months

Wesleyan University
Skills you'll gain: Social Impact, Social Justice, Sustainable Development, Environmental Issue, Social Sciences, Philanthropy, Community Development, Health Care, Sociology, Public Health, Empowerment, Climate Change Adaptation, Economics
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Climate Change Mitigation, Energy and Utilities, Electrical Power, Pollution Prevention, Sustainable Development, Environmental Policy, Oil and Gas, Sustainable Technologies, Environment, Socioeconomics, Environmental Science, Biological Engineering, Economics, Chemical Engineering
Mixed · Course · 1 - 3 Months

The Museum of Modern Art
Skills you'll gain: Art History, Liberal Arts, Lesson Planning, Aesthetics, Social Studies, Teaching, Student Engagement, Instructional Strategies, Curriculum Development, Student-Centred Learning, Cultural Diversity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Front-End Web Development, Git (Version Control System), Web Content Accessibility Guidelines, User Interface and User Experience (UI/UX) Design, HTML and CSS, React.js, Usability, Software Technical Review, Web Applications, User Experience Design, Semantic Web, Data Validation, Javascript
Intermediate · Course · 1 - 4 Weeks