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: HVAC, Building Services Engineering, Hydraulics, Thermal Management, Equipment Design, Engineering, Architectural Engineering, Mechanical Engineering, Engineering Calculations, Control Systems, Human Factors, System Requirements, Engineering Analysis, Performance Testing, Mathematical Modeling
Intermediate · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Mathematical Theory & Analysis, Advanced Mathematics, Arithmetic, Geometry, Algebra, Mathematical Modeling, Applied Mathematics, Biology
Beginner · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Spatial Analysis, Neurology, Human Learning, Psychology, Computational Thinking, Visual Impairment Education, Experimentation, Anatomy, Laboratory Research, Physiology, Biology, Magnetic Resonance Imaging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, React Native, Software Development Life Cycle, Flutter (Software), Large Language Modeling, LLM Application, Software Architecture, Swift Programming, Mobile Development, Apple Xcode, Android Studio, User Centered Design, Android Development, Apple iOS, Responsible AI, GitHub, Git (Version Control System), Cascading Style Sheets (CSS), Front-End Web Development, AI Personalization
Beginner · Professional Certificate · 3 - 6 Months

Columbia University
Skills you'll gain: Image Quality, Image Analysis, Computer Vision, Photography, Color Theory, Computer Displays, Computer Graphics, Digital Signal Processing, Semiconductors
Beginner · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Ancient History, Art History, Anthropology, Social Studies, Timelines, World History, Cultural Diversity, Research Methodologies, Investigation, Storytelling
Intermediate · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Open Web Application Security Project (OWASP), Debugging, DevSecOps, Penetration Testing, Cyber Security Strategy, Security Testing, Application Security, Continuous Monitoring, Software Testing, Development Testing, Cybersecurity, Vulnerability Assessments, Threat Modeling, White-Box Testing, Secure Coding, Vulnerability Management, Technical Communication
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Unit Testing, Data Structures, Java, Debugging, Computer Programming, Object Oriented Programming (OOP), Algorithms, Performance Tuning, Unstructured Data, Theoretical Computer Science
Intermediate · Course · 1 - 3 Months

The Chinese University of Hong Kong
Skills you'll gain: Art History, Ancient History, World History, Cultural Diversity, Anthropology, Sociology, Policy Analysis, Political Sciences, Economics, Governance
Mixed · Course · 1 - 3 Months
University of Colorado Boulder
Skills you'll gain: Social Media Campaigns, Campaign Management, Advertising Campaigns, Google Ads, Social Media, Social Media Strategy, Social Media Marketing, Digital Advertising, Instagram, Online Advertising, Search Engine Marketing, Pay Per Click Advertising, Facebook, Contextual Advertising, Advertising, Paid media, Content Creation, Press Releases, Target Audience, Content Development and Management
Beginner · Specialization · 3 - 6 Months
University of California, Irvine
Skills you'll gain: Grammar, Vocabulary, English Language, Oral Comprehension
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Looker (Software), Customer Retention, Web Analytics, Customer Analysis, Customer Insights, Marketing Analytics, Trend Analysis, Data Analysis, Product Management, Performance Metric, Analysis, Time Series Analysis and Forecasting, Strategic Marketing, Marketing Channel, Forecasting
Intermediate · Course · 1 - 4 Weeks