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 Colorado System
Skills you'll gain: Intrusion Detection and Prevention, Threat Detection, Incident Response, Computer Security Incident Management, Cybersecurity, Threat Management, Data Security, Cyber Attacks, Endpoint Security, Network Security, Cyber Security Assessment, Firewall
Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Adaptability, Resilience, Personal Attributes, Professional Development, Action Oriented, Overcoming Obstacles, Self-Awareness, Cognitive flexibility, Growth Mindedness, Personal Development, Relationship Building, Plan Execution, Composure, Productivity, Planning, Behavioral Management, Positivity, Optimism
Beginner · Course · 1 - 4 Weeks

Multiple educators
Skills you'll gain: Sustainable Design, Corporate Sustainability, Environmental Social And Corporate Governance (ESG), Sustainable Business, Sustainability Reporting, Sustainable Technologies, Sustainable Development, Business Ethics, Operations Management, Supply Chain Management, Supply Chain, Manufacturing Operations, Strategic Sourcing, Procurement, Supplier Relationship Management, Environmental Engineering, Labor Compliance, Compliance Management, Case Studies, Product Design
Build toward a degree
Beginner · Specialization · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Stakeholder Engagement, Environmental Monitoring, Hydrology, Community Outreach, Water Resource Management, Environmental Engineering and Restoration, Water Resources, Cultural Diversity, Policy Analysis, Social Sciences, Cultural Sensitivity, Environment and Resource Management, Environmental Laws, Environmental Engineering, Natural Resource Management, Land Management, Case Studies, Water Quality, Environmental Issue, Climate Change Adaptation
Intermediate · Specialization · 3 - 6 Months

IESE Business School
Skills you'll gain: Sustainable Business, Corporate Sustainability, Environmental Social And Corporate Governance (ESG), Corporate Strategy, Business Strategy, Environmental Issue, Strategic Decision-Making, Compliance Management, Stakeholder Engagement, Governance, Consumer Behaviour
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Data Analysis, Applied Mathematics, Mathematical Modeling, Graphing, Trigonometry, R (Software), Analytical Skills, General Mathematics, Statistics, Algebra, Systems Of Measurement, Correlation Analysis, Regression Analysis, Calculus, Geometry
Beginner · Specialization · 3 - 6 Months
Nanjing University
Skills you'll gain: Music, Classical Music, World Music, Social Studies, Cultural Sensitivity, Ancient History, Media and Communications, Art History, Language Learning, Cultural Diversity, Liberal Arts, Social Sciences, Electronic Media, Intercultural Competence, Performing Arts, Anthropology, Sociology, Nutrition and Diet
Beginner · Course · 1 - 3 Months

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

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

Skills you'll gain: Music Theory, Musical Composition, Music, Music Performance, File Management, Instrumental Music, Storytelling, Media Production, Automation, Writing, Editing, Technical Support, Creativity
Beginner · Specialization · 3 - 6 Months

Berklee
Skills you'll gain: Entrepreneurship, Creativity, Team Building, Creative Thinking, Presentations, Innovation, Self-Starter, Brand Strategy, Open Mindset, Collaboration, Product Development, Visionary, Curiosity, Professional Networking, Problem Solving
Beginner · Course · 1 - 4 Weeks

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