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.

Johns Hopkins University
Skills you'll gain: Game Theory, Mathematical Modeling, Political Sciences, Combinatorics, Social Sciences, Probability, Applied Mathematics, Critical Thinking, General Mathematics, Statistical Analysis
Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Cyber Attacks, Data Security, Safety and Security, Cybersecurity, Computer Security Awareness Training, digital literacy, Information Systems Security, Security Strategy, Security Controls, Data Loss Prevention, Incident Response, Data Storage, Vulnerability Assessments, Patch Management
Mixed · Course · 1 - 3 Months

Skills you'll gain: Back-End Web Development, Server Side, Middleware, Authentications, API Design, Application Programming Interface (API), User Accounts, Databases, JavaScript Frameworks, Scalability, GitHub, Development Environment, Data Validation
Intermediate · Course · 1 - 4 Weeks

Universidad de Palermo
Skills you'll gain: Hospitality, Climate Change Adaptation, Market Dynamics, Digital Transformation, Hotels and Accommodations, Sustainable Development, Travel Arrangements, Food Services, Economic Development, Socioeconomics, Environmental Resource Management, Cultural Diversity, Culture, Consumer Behaviour, Supply And Demand
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Systems Thinking, Environmental Laws, Sustainable Development, Climate Change Adaptation, Land Development, Community Development, Environmental Policy, Social Impact, Sustainable Design, Stormwater Management, Social Justice, Socioeconomics, Environmental Science, Climate Change Mitigation
Beginner · Course · 1 - 3 Months

Dassault Systèmes
Skills you'll gain: SolidWorks (CAD), Assembly Drawing, 3D Modeling, Computer-Aided Design, Mechanical Design, Engineering Drawings
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data Science, Model Evaluation, Statistical Machine Learning, Dimensionality Reduction, Statistical Modeling, Statistical Analysis, Sampling (Statistics), Statistical Methods, Regression Analysis, Statistical Inference, Statistics, Applied Mathematics, Logistic Regression, Probability Distribution
Build toward a degree
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Accountability, Decision Making, Conflict Management, Business Ethics, Risk Management, Strategic Leadership, Culture Transformation, Engineering Management, Organizational Leadership, Empathy, Organizational Strategy, Technical Management, Leadership, Professional Development, Employee Engagement
Beginner · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Artificial Intelligence, Psychology, Human Learning, Anthropology, Human Factors, Science and Research, Robotics
Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: Sampling (Statistics), Exploratory Data Analysis, R (Software), Statistical Inference, Probability Distribution, Bayesian Statistics, R Programming, Data Analysis, Probability, Statistics, Statistical Analysis, Descriptive Statistics
Beginner · Course · 1 - 3 Months

Skillshare
Skills you'll gain: Cinematography, Videography, Post-Production, Video Production, Storytelling, Proposal Writing, Storyboarding, Target Audience, Presentations, Sales Presentations, Business Writing, Promotional Strategies, Marketing, Concision, Editing, Creativity, Writing, Color Matching
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: API Testing, React.js, Authentications, Containerization, OAuth, Cloud Deployment, Back-End Web Development, PostgreSQL, API Gateway, Software Documentation, Amazon Web Services, Cloud Applications, Event-Driven Programming, Front-End Web Development, Python Programming, Database Management, Restful API, SQL, API Design, Databases
Intermediate · Specialization · 3 - 6 Months