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.

Arizona State University
Skills you'll gain: Semiconductors, Electronic Components, Electrical Engineering, Electronics Engineering, Electronics, Materials science
Intermediate · Course · 1 - 3 Months

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

Dartmouth College
Skills you'll gain: Neurology, Anatomy, Mindfulness, Physiology, Human Learning, Biology, Psychology, Experimentation
Mixed · Course · 1 - 4 Weeks

Wesleyan University
Skills you'll gain: Aesthetics, Art History, European History, Liberal Arts, World History, Culture, Socioeconomics, Political Sciences, Sociology
Mixed · Course · 1 - 3 Months

University of Pittsburgh
Skills you'll gain: Diversity Awareness, Workplace inclusivity, Cultural Diversity, Diversity and Inclusion, Culture, Sociology, Social Sciences, Law, Regulation, and Compliance
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Data Storytelling, Data Presentation, Data Visualization, Interactive Data Visualization, Exploratory Data Analysis, Data Visualization Software, Database Design, Shiny (R Package), Dashboard, Data Wrangling, Relational Databases, Statistical Visualization, Statistical Analysis, Big Data, Data Analysis, Microsoft Excel, Analytical Skills, Excel Formulas, Data Manipulation, Web Scraping
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Social Studies, World History, Culture, Economics, International Relations, Socioeconomics, Political Sciences
Beginner · Course · 1 - 4 Weeks
University of Colorado Boulder
Skills you'll gain: Google Ads, Digital Advertising, Online Advertising, Advertising, Contextual Advertising, Pay Per Click Advertising, Advertising Campaigns, Paid media, Social Media, Search Engine Marketing, Performance marketing, Marketing, Keyword Research, Search Engine Optimization, Social Media Marketing, Digital Marketing, Social Media Strategy, Social Media Campaigns, Data Ethics, Web Analytics and SEO
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: User Story, Quality Assurance, Jira (Software), Agile Methodology, Verification And Validation, Product Quality (QA/QC), Quality Assessment, Agile Project Management, Sprint Planning, Workflow Management, Project Estimation
Beginner · Course · 1 - 4 Weeks
University of Toronto
Skills you'll gain: Education and Training, Cultural Diversity, Higher Education, Social Sciences, Social Studies, Diversity Awareness, Intercultural Competence, Cultural Sensitivity, Social Justice, Liberal Arts, Research, Storytelling
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Visualization, Dashboard, Exploratory Data Analysis
Intermediate · Course · 1 - 4 Weeks