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.

Council on Foreign Relations
Skills you'll gain: International Relations, World History, Political Sciences, Social Sciences, Culture, Socioeconomics, Public Policies, Policy Analysis, Strategic Decision-Making, Economics, Governance, Analysis
Beginner · Course · 1 - 3 Months

Saïd Business School, University of Oxford
Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Generative AI, Responsible AI, OpenAI, Artificial Neural Networks, AI Security, Data Ethics, Governance, Artificial Intelligence, ChatGPT, AI Workflows, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems, Compliance Management, AI Product Strategy, Business Ethics, Risk Management, Machine Learning, Project Management
Beginner · Specialization · 3 - 6 Months

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Vibrations, Engineering Analysis, Mechanics, Structural Analysis, Mechanical Engineering, Engineering, Differential Equations, Mathematical Modeling
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Sheets, Spreadsheet Software, Excel Formulas, Pivot Tables And Charts, Collaborative Software, Data Sharing, Data Presentation, Data Visualization, Data Visualization Software, Data Analysis, Data Import/Export, Data Management
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Cascading Style Sheets (CSS), Web Design, Web Design and Development, Web Development, UI Components, Usability, Typography
Intermediate · Course · 1 - 3 Months

University of Copenhagen
Skills you'll gain: Health Systems, Maternal Health, Child Health, Public Health, Health Policy, Infectious Diseases, Health Equity, Health Disparities, Public Health and Disease Prevention, Water Resources, Health Promotion, Health Education, Social Determinants Of Health, Epidemiology, Community Health, Environmental Policy, Sanitation, Nutrition and Diet, Climate Change Programs, Chronic Diseases
Mixed · Course · 1 - 3 Months

Skills you'll gain: iOS Development, Apple iOS, Apple Xcode, Mobile Development, Swift Programming, Mobile Development Tools, Objective-C (Programming Language), User Interface (UI), Application Development, UI Components, Integrated Development Environments, Development Environment, Storyboarding
Beginner · Course · 1 - 4 Weeks
Stanford University
Skills you'll gain: Game Theory, Bidding, Social Sciences, Resource Allocation, Policy Analysis, Economics, Behavioral Economics, Decision Making, Socioeconomics, Mathematical Theory & Analysis
Advanced · Course · 1 - 3 Months

Keller Williams
Skills you'll gain: Lead Generation, Administrative Support, Real Estate, Office Management, Real Estate Sales, Value Propositions, Property and Real Estate, Sales Process, Customer Relationship Building, Database Management, Customer Acquisition Management, Sales Management, Client Services, Real Estate Transactions, Organizational Skills, Sales Prospecting, Sales Presentation, Contract Negotiation, Interpersonal Communications, Goal Setting
Beginner · Professional Certificate · 3 - 6 Months

Erasmus University Rotterdam
Skills you'll gain: Environmental Social And Corporate Governance (ESG), Sustainable Business, Stakeholder Engagement, Sustainable Development, Corporate Sustainability, Risk Management, Climate Change Adaptation, Climate Change Mitigation, Sustainability Reporting, Finance, Asset Management, Banking
Intermediate · Course · 1 - 3 Months
Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Semiconductors, Electronic Components, Display Devices, Electronic Systems, Electronics, Electronics Engineering, Data Storage
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Backlogs, Agile Methodology, Scrum (Software Development), User Story, Sprint Retrospectives, Sprint Planning, Agile Project Management, Team Oriented, Project Estimation, Estimation, Cross-Functional Collaboration
Beginner · Course · 1 - 3 Months