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 Virginia
Skills you'll gain: Project Planning, Project Risk Management, Earned Value Management, Project Management Life Cycle, Risk Management, Project Coordination, Project Scoping, Project Management, Sprint Planning, Stakeholder Analysis, Agile Methodology, Budget Management, Dependency Analysis, Scheduling, Work Breakdown Structure, Kanban Principles
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Debugging, Automation, Web Scraping, Software Testing, Web Development Tools, Test Case, Browser Compatibility, Cascading Style Sheets (CSS)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Cloud Computing, Network Monitoring, Command-Line Interface, Cloud Services, General Networking, Linux, Windows PowerShell, Virtual Machines
Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Time Series Analysis and Forecasting, Forecasting, Model Evaluation, Regression Analysis, Microsoft Excel, Excel Formulas, Trend Analysis, Case Studies, Business Mathematics, Business Metrics, Predictive Modeling, Data Presentation, Statistical Visualization, Graphing, Business Economics, Statistical Modeling, Business Analytics, Decision Making, Process Optimization, Statistical Analysis
Intermediate · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Meeting Facilitation, Team Building, Team Management, Sprint Retrospectives, Innovation, Sprint Planning, Agile Methodology, Virtual Teams, Agile Project Management, Team Leadership, Social Sciences, Organizational Leadership, Change Management, Psychology
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Oral Comprehension, Language Competency, English Language, Language Learning
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Artificial Neural Networks, Image Analysis, Event-Driven Programming, Scalability, Deep Learning, C and C++, Performance Tuning, Convolutional Neural Networks, Data-oriented programming, Distributed Computing, Linear Algebra, Computer Graphics, Hardware Architecture, Mathematical Software, Numerical Analysis, Programming Principles, Computer Architecture, System Programming, Program Development, Machine Learning
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Social Justice, Diversity Awareness, Socioeconomics, Cultural Diversity, Sociology, Diversity Equity and Inclusion Initiatives, Cultural Responsiveness, Cultural Sensitivity, Conflict Management, Advocacy, Empathy & Emotional Intelligence, Family Law, Community and Social Work, Public Policies
Beginner · Specialization · 1 - 3 Months

Dartmouth College
Skills you'll gain: Strategic Leadership, Business Leadership, Leadership, Organizational Leadership, Leadership Development, Strategic Decision-Making, Culture Transformation, Accountability, Strategic Thinking, Organizational Change, Business Strategy, Compensation Management, Change Management, Company, Product, and Service Knowledge, Industrial and Organizational Psychology, Case Studies
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Matplotlib, Seaborn, Plot (Graphics), Pandas (Python Package), NumPy, Data Visualization Software, Data Visualization, Programming Principles, Computer Science, Computer Programming, Histogram, Package and Software Management, Data Import/Export, Scripting, Scripting Languages, Data Manipulation, Python Programming, Data Science, Software Engineering
Beginner · Specialization · 1 - 3 Months

University of Michigan
Skills you'll gain: Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, Web Design, Web Design and Development, Cascading Style Sheets (CSS), Semantic Web, Usability, Javascript, Responsive Web Design, Web Content
Mixed · Course · 1 - 4 Weeks

Commonwealth Education Trust
Skills you'll gain: Diversity Awareness, Parent Communication, Cultural Diversity, Relationship Building, Working With Children, Classroom Management, Teaching, Community Outreach, Student Engagement, Ethical Standards And Conduct
Mixed · Course · 1 - 3 Months