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.

Starweaver
Skills you'll gain: High Voltage, Power Electronics, Electrical Equipment, Electronic Systems, Electrical Systems, Basic Electrical Systems, Energy and Utilities, Control Systems, Test Equipment, Electric Power Systems, Wiring Diagram, Hardware Troubleshooting, Electrical Safety, Sustainable Technologies, Failure Analysis, Test Tools, Thermal Management, Emerging Technologies
Beginner · Course · 1 - 4 Weeks
The University of Edinburgh
Skills you'll gain: Life Sciences, Biology, Environmental Science, Environment, Research, Biochemistry, Microbiology, Scientific Methods, Chemistry
Mixed · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Windows Servers, Computer Security, Linux Administration, Contingency Planning, Disaster Recovery, Authorization (Computing), Linux, Linux Servers, Microsoft Windows, Authentications, Business Continuity Planning, OSI Models, User Accounts, Group Policy, Security Management, Microsoft Servers, Operating System Administration, Systems Administration, Virtualization, Cybersecurity
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Project Scoping, Timelines, Proposal Writing, Business Writing, Procurement, Requirements Management, Purchasing, Bidding, Project Documentation, Vendor Management, Facility Management, Decision Making
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Engineering, Scientific, and Technical Instruments, Embedded Systems, Embedded Software, Real Time Data, Electronics, Electronic Systems, Electronic Components, Design Specifications
Build toward a degree
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Maintainability, Code Review, Test Driven Development (TDD), API Testing, LLM Application, API Design, Microsoft Visual Studio, Software Engineering, Engineering Software, Software Technical Review, Program Development, Application Lifecycle Management, Unit Testing, Microservices, Peer Review, Quality Assessment
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Information Technology Infrastructure Library, Service Management, IT Service Management, Information Technology, Information Technology Operations, Service Level, Operations Management, Asset Management, Operations
Mixed · Course · 1 - 4 Weeks

Tecnológico de Monterrey
Skills you'll gain: Organizational Leadership, Stress Management, Leadership, Influencing, Motivational Skills, Leadership Development, Industrial and Organizational Psychology, Leadership and Management, Business Leadership, Strategic Leadership, Job Analysis, Business Ethics, Employee Engagement, Persuasive Communication, Emotional Intelligence, Professional Networking, Empowerment
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Blockchain, Digital Assets, Portfolio Risk, Portfolio Management, Cryptography, Investments, Market Dynamics, Financial Market, Price Negotiation, Securities (Finance), Financial Policy, Financial Regulation, Cyber Risk, Production Process
Intermediate · Course · 1 - 4 Weeks

Fundação Instituto de Administração
Skills you'll gain: Delegation Skills, Lifelong Learning, Leadership, Digital Transformation, Team Leadership, Team Management, Business Transformation, Leadership Development, Business Leadership, Telecommuting, Constructive Feedback, Organizational Leadership, Drive Engagement, Innovation, Professional Development, Strategic Leadership, Storytelling, Adaptability, Team Motivation, Strategic Communication
Beginner · Course · 1 - 4 Weeks

University of Pittsburgh
Skills you'll gain: Educational Materials, Web Content Accessibility Guidelines, Disabilities, Adaptive Equipment, Instructional Design, Differentiated Instruction, Education Software and Technology, Case Studies, Curriculum Development, Student Support and Services, Diversity Awareness, Higher Education
Mixed · Course · 1 - 4 Weeks

University of Florida
Skills you'll gain: Climate Change Mitigation, Land Management, Sustainable Development, Environment and Resource Management, Natural Resource Management, Environment, Sustainability Standards, Environmental Science, Research, Biology
Intermediate · Course · 1 - 3 Months