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.

Shanghai Jiao Tong University
Skills you'll gain: Combinatorics, Graph Theory, Theoretical Computer Science, Mathematical Theory & Analysis, Advanced Mathematics, Network Analysis, Computational Thinking, Algorithms, Data Structures, Computer Science
Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Digital Signal Processing, Digital Communications, Communication Systems, Image Analysis, Telecommunications, Electrical and Computer Engineering, Electrical Engineering, Embedded Systems, Electronic Systems, Engineering Analysis, Electronics, Programming Principles, Numerical Analysis, Algorithms, Linear Algebra, Systems Of Measurement, Mathematical Modeling, Time Series Analysis and Forecasting, Jupyter, Data Mapping
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Generative AI, AI Enablement, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Natural Language Processing, Innovation, Critical Thinking
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React Native, Flutter (Software), Mobile Development, Ajax, Front-End Web Development, Javascript, React.js, Apple iOS, Mobile Development Tools, Data Structures, JavaScript Frameworks, Application Development, Back-End Web Development, Debugging, iOS Development, User Story, Android Development, UI Components, Cross Platform Development, JSON
Beginner · Specialization · 3 - 6 Months

University at Buffalo
Skills you'll gain: Semiconductors, Electronic Components, Thermal Management, Manufacturing Processes, Laboratory Equipment, Materials science, Electrical Engineering, Laboratory Procedures, Engineering, Mechanical Engineering, Safety Standards, Goal Setting, Emerging Technologies, Problem Solving, Self-Starter, Higher Education, Time Management, Critical Thinking
Beginner · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Microarchitecture, Computer Architecture, Hardware Architecture, Computer Systems, Computer Engineering, Distributed Computing, Operating Systems, Performance Tuning, Scalability
Advanced · Course · 3 - 6 Months

University of Geneva
Skills you'll gain: Sustainable Development, Environment, Environmental Resource Management, Stakeholder Engagement, Water Sustainability, Natural Resource Management, Environmental Science, Environmental Policy, Geographic Information Systems, Case Studies, Economics, Governance
Intermediate · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Calculus, Engineering Calculations, Mathematical Theory & Analysis, Algebra, Advanced Mathematics, Applied Mathematics, Derivatives
Mixed · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Music Theory, Music, Musical Composition, Classical Music, Instrumental Music, Music Performance
Mixed · Course · 1 - 3 Months

University of Virginia
Skills you'll gain: World History, International Relations, European History, Political Sciences, Social Sciences, Culture, Economics, Governance
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Data Visualization, Exploratory Data Analysis, Regression Analysis, Feature Engineering, Statistical Hypothesis Testing, Sampling (Statistics), Data Ethics, Logistic Regression, Model Evaluation, Data Visualization Software, Descriptive Statistics, Data Analysis, Statistical Analysis, Tableau Software, Object Oriented Programming (OOP), Data Science, Machine Learning, Interviewing Skills, Python Programming
Build toward a degree
Advanced · Professional Certificate · 3 - 6 Months

Yale University
Skills you'll gain: Liberal Arts, Environment, Culture, Biology, Creativity, Anthropology, Systems Thinking, Social Studies, Timelines, Environmental Science, Physics, Scientific Methods
Mixed · Course · 1 - 3 Months