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 Michigan
Skills you'll gain: UI/UX Research, Surveys, Qualitative Research, Usability Testing, User Experience Design, User Research, User Experience, User Story, Prototyping, Wireframing, User Centered Design, Survey Creation, Sampling (Statistics), Design Research, Interaction Design, Ideation, A/B Testing, Conceptual Design, Web Analytics, Usability
Beginner · Specialization · 3 - 6 Months

University of Minnesota
Skills you'll gain: Software Development Methodologies, Agile Methodology, Software Engineering, Software Development Life Cycle, Requirements Analysis, Application Deployment, Agile Software Development, Software Architecture, Verification And Validation, Waterfall Methodology, System Requirements, Software Testing, User Requirements Documents
Beginner · Course · 1 - 4 Weeks

American Museum of Natural History
Skills you'll gain: Environment, Systems Thinking, Environmental Science, Natural Resource Management, Environmental Resource Management, Biology, Sustainable Development, Environmental Engineering and Restoration, Case Studies, Mathematical Modeling
Intermediate · Course · 1 - 3 Months

Skills you'll gain: WordPress, Cloud Hosting, Frontend Performance, Web Design, Secure Coding, Performance Tuning, Amazon Web Services, Order Management, Product Assortment, Data Store, Data Management, Web Design and Development, Usability, Data Security, Cloud Deployment, Remote Access Systems, Web Development, Web Servers, Servers, Content Management Systems
Beginner · Specialization · 1 - 3 Months

Duke University
Skills you'll gain: C (Programming Language), Data Structures, Programming Principles, Algorithms, Computational Thinking, Debugging
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Spring Framework, JUnit, Unit Testing, Enterprise Application Management, Java, Integration Testing, Configuration Management, Software Design Patterns, Extensible Markup Language (XML), Context Management, Dependency Analysis
Intermediate · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Mechanics, Physics, Mechanical Engineering, Engineering Calculations, Calculus, Engineering Analysis, Physical Science, Mathematical Modeling, Problem Solving
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Trauma Care, Emergency Medicine, Emergency Medical Services, Patient Evaluation, Triage, Clinical Assessment, First Aid, Patient Transport, Wound Care, Vital Signs, Physiology, Anatomy
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Tensorflow, Recurrent Neural Networks (RNNs), Time Series Analysis and Forecasting, Applied Machine Learning, Convolutional Neural Networks, Deep Learning, Predictive Modeling, Data Preprocessing, Artificial Neural Networks, Forecasting, Machine Learning
Intermediate · Course · 1 - 4 Weeks

École Nationale des Ponts et Chaussées
Skills you'll gain: Petroleum Industry, Sustainable Engineering, Environmental Engineering, Oil and Gas, Environment Health And Safety, Construction Engineering, Civil Engineering, Occupational Safety and Health Administration (OSHA), Safety Assurance, Transportation Operations, Sustainable Design, Energy and Utilities, Materials science, Construction, Chemical Engineering, Technical Standard, Chemistry, Production Process, Performance Testing, Manufacturing Processes
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Architecture, Virtual Networking, Virtualization, Network Planning And Design, Software-Defined Networking, Virtual Private Networks (VPN), Network Protocols, Cloud Infrastructure, Local Area Networks, Wireless Networks, Wide Area Networks, Virtual Machines
Intermediate · Course · 1 - 4 Weeks

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