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.

Wesleyan University
Skills you'll gain: Storytelling, Peer Review, Writing, Editing, Constructive Feedback, Creativity, Persistence, Professionalism
Mixed · Course · 1 - 3 Months

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

Yale University
Skills you'll gain: Applied Behavior Analysis, Behavior Management, Positive Behavior Support, Parent Communication, Mental Health Diseases and Disorders, Working With Children, Child Development, Adaptability, Problem Solving
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Microsoft Excel, Excel Formulas, Spreadsheet Software, Microsoft Office, Data Entry, Microsoft 365
Intermediate · Guided Project · Less Than 2 Hours

Arizona State University
Skills you'll gain: Statistical Process Controls, Process Control, Semiconductors, Quality Assurance, Verification And Validation, Electronics Engineering, Manufacturing Operations, Manufacturing Processes, Electronics, Process Improvement, Process Analysis, Product Testing, Reliability, Electronic Components, Electronic Systems, Computer Hardware, Computer Architecture, Thermal Management, Scalability, Systems Integration
Beginner · Specialization · 3 - 6 Months

New York University
Skills you'll gain: Performing Arts, Art History, Peer Review, Music Performance, World History, Intercultural Competence, Culture, Music, Ancient History, Cultural Diversity, Sociology, Anthropology, Storytelling, Media and Communications, Electronic Media
Beginner · Course · 3 - 6 Months

University of Pennsylvania
Skills you'll gain: Electric Power Systems, Electrical Systems, Safety Standards, Energy and Utilities, Electrical Safety, Environmental Regulations, Power Electronics, Sustainable Technologies, Hydraulics, Basic Electrical Systems, Thermal Management, Equipment Design, Semiconductors, Physics
Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Data Governance, SQL, Data Quality, Database Design, Query Languages, Data Modeling, Relational Databases, Data Manipulation, Data Science, Data Analysis, Descriptive Statistics
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Bioinformatics, Unix Commands, Biostatistics, Exploratory Data Analysis, Statistical Analysis, Unix, Data Science, Data Management, Statistical Methods, Command-Line Interface, Statistical Hypothesis Testing, Linux Commands, Data Analysis Software, Data Quality, Data Structures, Data Analysis, Computer Science, Molecular Biology, R Programming, Python Programming
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Systems Architecture, Embedded Software, Software Design, System Design and Implementation, Embedded Systems, System Programming, Software Systems, Electronic Systems, Systems Design, Hardware Architecture, Software Architecture, Requirements Analysis, Real Time Data, Linux, Service Level, OS Process Management, System Requirements, Debugging, Algorithms
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

École Polytechnique
Skills you'll gain: Semiconductors, Materials science, Differential Equations, Numerical Analysis, Linear Algebra, Applied Mathematics, Chemistry, Physics, Calculus
Advanced · Course · 1 - 4 Weeks

Universitat de Barcelona
Skills you'll gain: European History, Writing, Music History, Cultural Diversity
Beginner · Course · 1 - 3 Months