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 California San Diego
Skills you'll gain: Combinatorics, Probability, Probability Distribution, Algorithms, Bayesian Statistics, Mathematical Modeling, Statistics, Arithmetic, Python Programming, Simulations
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Control Systems, Basic Electrical Systems, Electrical Systems, Power Electronics, Three-Phase, Torque (Physics), Electrical Equipment, Embedded Software, Electronics, Electrical Wiring, Electronic Hardware, Design Specifications, System Requirements, Laboratory Experience, Electronic Components
Build toward a degree
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Social Studies, Diversity Awareness, Culture, Cultural Diversity, Social Justice, Anthropology, Socioeconomics, Social Sciences, World History, International Relations
Beginner · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Engineering, Thermal Management, Materials science, Physics, Engineering Calculations, Mechanics, Physical Science, Applied Mathematics
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Penetration Testing, Application Security, Secure Coding, Exploitation techniques, Software Design Patterns, Vulnerability Assessments, Amazon Web Services, SQL, Operating Systems, C (Programming Language)
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Influencing, Negotiation, Leadership, Conflict Management, Persuasive Communication, Leadership Development, Professional Development, Business Leadership, Communication, Initiative and Leadership, Empowerment, Personal Development, Leadership and Management, Cooperation, Communication Strategies, Team Building, Constructive Feedback, Decision Making, Ethical Standards And Conduct
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Virtual Private Networks (VPN), Cybersecurity, Computing Platforms, Multi-Factor Authentication, Authentications, Information Systems Security, Network Security, Technical Support and Services, Application Security, Data Security, Information Privacy, Servers, Cloud Computing, Network Administration, Encryption, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: LangChain, Prompt Engineering, LLM Application, LangGraph, Generative AI Agents, Embeddings, Agentic systems, AI Workflows, OpenAI API, Large Language Modeling, Hugging Face, OpenAI, ChatGPT, Data Processing, Artificial Intelligence and Machine Learning (AI/ML), Development Environment, Retrieval-Augmented Generation, Artificial Intelligence, Vector Databases, User Interface (UI)
Intermediate · Specialization · 3 - 6 Months

Michigan State University
Skills you'll gain: Interviewing Skills, Journalism, Research, Investigation, Ethical Standards And Conduct, Data Collection, Rapport Building, Diversity Awareness, Cultural Diversity, Social Network Analysis
Mixed · Course · 1 - 4 Weeks

University of Cambridge
Skills you'll gain: Accrual Accounting, Accruals, Financial Accounting, Financial Modeling, Accounting, Equities, Financial Market, Capital Markets, Financial Analysis, Sustainable Business, Depreciation, Financial Statements, Cash Flows, Loans, Profit and Loss (P&L) Management, Microsoft Excel, Strategic Decision-Making
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cyber Operations, Cybersecurity, Authentications, Python Programming, Data Access, System Monitoring, Systems Analysis
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: TypeScript, Javascript, React.js, JavaScript Frameworks, Web Development Tools, Application Development, Web Development
Intermediate · Guided Project · Less Than 2 Hours