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.

Packt
Skills you'll gain: LangChain, Prompt Engineering, LLM Application, LangGraph, Generative AI Agents, Agentic systems, Large Language Modeling, OpenAI, Data Processing, Artificial Intelligence and Machine Learning (AI/ML), Development Environment, Artificial Intelligence, AI Personalization, Responsible AI, Tool Calling, Text Mining, Query Languages, User Interface (UI), Application Development, Natural Language Processing
Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Advertising, Media and Communications, Digital Advertising, Culture, Art History, Creativity, Consumer Behaviour, Business Ethics, Diversity and Inclusion
Mixed · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Fundraising, Grant Writing, Proposal Writing, Prospecting and Qualification, Philanthropy, Campaign Management, Tax Planning, Direct Marketing, Business Writing, Customer Relationship Building, Marketing Strategies, Relationship Building, Estate Planning, Benefits Administration, Administration, Target Audience, Email Marketing, Telemarketing, Stakeholder Management, Negotiation
Beginner · Specialization · 3 - 6 Months

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

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

Arizona State University
Skills you'll gain: Manufacturing Processes, Materials science, Process Engineering, Manufacturing Operations, Production Process, Equipment Design, Laboratory Experience, Experimentation, Prototyping, Process Development, Analytical Testing
Intermediate · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Crisis Management, Mediation, Leadership Studies, Negotiation, Conflict Management, Diplomacy, Leadership, Policy Analysis, Leadership Development, Social Justice, Organizational Leadership, Ethical Standards And Conduct, Leadership and Management, Business Leadership, Public Policies, Strategic Leadership, Political Sciences, Economics, Policy, and Social Studies, Public Administration, Governance
Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Computational Thinking, Data Analysis, Analysis, C (Programming Language), Programming Principles, Data Structures, Descriptive Statistics, Data Visualization Software
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Power Electronics, Thermal Management, Electrical Safety, Electrical Power, Electric Power Systems, Electronic Systems, Electrical Equipment, Electrical Systems, Embedded Software, Electronic Components, Energy and Utilities, HVAC, Basic Electrical Systems, Sustainable Technologies, Automation, Environmental Issue, Environment and Resource Management, Environmental Regulations, Environmental Engineering and Restoration, Geospatial Information and Technology
Intermediate · Specialization · 1 - 3 Months

University of Virginia
Skills you'll gain: Financial Statements, Financial Accounting, Balance Sheet, Financial Reporting, Financial Statement Analysis, Accounting, Annual Reports, Accrual Accounting, Income Statement, Financial Analysis, Generally Accepted Accounting Principles (GAAP), Accounting Records, Ledgers (Accounting), Cash Flows
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Mathematics Education, Education Software and Technology, Research, Science and Research, Qualitative Research, Technical Communication
Mixed · Course · 1 - 3 Months