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.

Princeton University
Skills you'll gain: Combinatorics, Mathematical Theory & Analysis, Advanced Mathematics, Graph Theory, Theoretical Computer Science, Calculus, Probability, Computational Thinking
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Scientific Methods, Research, General Science and Research, Critical Thinking, Probability, Research Design, Bayesian Statistics, Probability & Statistics, Experimentation, Investigation, Decision Making
Beginner · Course · 1 - 3 Months

Technical University of Munich (TUM)
Skills you'll gain: Commercialization, Transportation Operations, Resource Utilization, Sustainable Development, Medical Science and Research, Environment and Resource Management, Sustainable Technologies, Strategic Partnership, Physical Science, Science and Research, Research
Intermediate · Course · 1 - 3 Months

Siemens
Skills you'll gain: Design Software, Data Import/Export, User Experience, Engineering Software, Technical Design, 3D Assets, Graphical Tools
Beginner · Course · 1 - 3 Months

Northwestern University
Skills you'll gain: Robotics, Simulation and Simulation Software, Mathematical Modeling, Mechanical Engineering, Vibrations, Algorithms, Torque (Physics), Control Systems, Applied Mathematics, Calculus, Linear Algebra
Intermediate · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Differential Equations, Applied Mathematics, Advanced Mathematics, Calculus, Linear Algebra, Engineering Analysis, Mathematical Theory & Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: Assembly Drawing, Finite Element Methods, Mechanical Design, Engineering Drawings, Engineering Analysis, Technical Drawing, 3D Modeling, Computer-Aided Design, Simulation and Simulation Software, Data Integration
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Architectural Design, Sustainable Development, Building Codes, Community Development, Land Development, Sustainable Architecture, Building Design, Sustainable Design, Sustainable Technologies, Construction, Climate Change Mitigation, Disabilities, Traffic Flow Optimization, Environmental Policy, Environmental Engineering, Policy Analysis, Case Studies
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Music Performance, Musical Composition, Music Theory, Instrumental Music, Music
Intermediate · Course · 1 - 4 Weeks
Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Semiconductors, Process Engineering, Manufacturing Processes, Production Process, Electronics, Electronics Engineering, Materials science, Chemical Engineering
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Image Quality, Engineering, Scientific, and Technical Instruments, Electronic Components, Systems Design, Human Factors, Engineering Calculations, Technical Design, Simulation and Simulation Software, Mathematical Modeling
Build toward a degree
Advanced · Course · 1 - 3 Months

California Institute of the Arts
Skills you'll gain: Typography, Infographics, Computer Graphics, Visualization (Computer Graphics), Design, Graphic Design, Graphic and Visual Design Software, Design Elements And Principles, Color Theory, Image Analysis, Creativity
Beginner · Course · 1 - 4 Weeks