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 London
Skills you'll gain: Literacy, English Language, Language Learning, Vocabulary, Grammar, Student-Centred Learning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Extract, Transform, Load, Web Scraping, Data Transformation, File I/O, Data Processing, JSON, Data Integration, Data Pipelines, Pandas (Python Package), Python Programming, Jupyter
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Art History, Community Organizing, World History, Social Justice, Social Impact, Social Sciences, Cultural Diversity, Liberal Arts, Performing Arts, Creativity, Media and Communications
Mixed · Course · 1 - 3 Months

Osmosis
Skills you'll gain: Personal protective equipment, Epidemiology, Diagnostic Tests, Public Health, Infection Control, Infectious Diseases, Laboratory Testing, Patient Evaluation, Health Care, Clinical Practices, Respiratory Care
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Cascading Style Sheets (CSS), Web Design and Development, Mobile Development, Front-End Web Development, Web Design, Web Development, Application Deployment, Cloud Deployment, User Interface (UI), User Interface (UI) Design, UI Components, Software Engineering
Intermediate · Specialization · 1 - 4 Weeks

Stanford University
Skills you'll gain: Child Health, Maternal Health, Infant Care, Preventative Care, Family Support, Nutrition and Diet
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Global Positioning Systems, Journalism, Music, Political Sciences, Entrepreneurship, Systems Engineering, Culture, Aerospace Basic Quality System Standards, Media and Communications, International Relations, Governance, Higher Education, Public Policies, Physical Science, Liberal Arts, Geographic Information Systems, Physics, Engineering Design Process, Environmental Science, Writing
Beginner · Specialization · 3 - 6 Months

Yad Vashem
Skills you'll gain: Art History, European History, World History, Social Justice, Political Sciences, Cultural Diversity, Psychology, Liberal Arts, Policy Analysis, Ethical Standards And Conduct
Intermediate · Course · 1 - 3 Months

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Mechanics, Mechanical Engineering, Engineering Analysis, Physics, Engineering Calculations, Differential Equations, Integral Calculus, Calculus
Intermediate · Course · 3 - 6 Months

Coursera
Skills you'll gain: Timelines, Project Documentation, Team Management, Stakeholder Management, Project Management, Project Management Software, Project Schedules, Project Scoping, Work Breakdown Structure, Project Planning
Beginner · Guided Project · Less Than 2 Hours

University of Houston
Skills you'll gain: Multilingualism, Language Competency, Language Learning, Learning Theory, Non-Verbal Communication, Neurology, Human Development, Psychology, Child Development, Science and Research
Mixed · Course · 1 - 3 Months

Universidad de los Andes
Skills you'll gain: Project Scoping, Scope Management, Feasibility Studies, Work Breakdown Structure, Project Controls, Project Management Life Cycle, Cost Estimation, Estimation, Requirements Management, Project Management, Project Management Institute (PMI) Methodology, Project Risk Management, Project Schedules, Project Portfolio Management, Strategic Planning, Timelines, Project Design, Crisis Management, Earned Value Management, Problem Management
Build toward a degree
Intermediate · Specialization · 3 - 6 Months