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.

Yale University
Skills you'll gain: Diagnostic Radiology, Medical Imaging, Radiography, X-Ray Computed Tomography, Medical Ultrasonography, Magnetic Resonance Imaging, Diagnostic Tests, Neurology, Image Analysis, Anatomy
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Spring Framework, Microservices, JUnit, Model View Controller, Restful API, Spring Boot, Software Architecture, API Gateway, Web Services, Object-Relational Mapping, Transaction Processing, Data Persistence, Service Oriented Architecture, Cloud Computing Architecture, JSON, YAML, Load Balancing, Unit Testing, Java Programming, Enterprise Application Management
Beginner · Specialization · 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

Johns Hopkins University
Skills you'll gain: Integral Calculus, Calculus, Geometry, Applied Mathematics, Mechanics, Engineering Calculations, Mathematical Modeling, Physics
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Display Devices, Computer Displays, Systems Design, Technical Design, Electronics Engineering, Electronic Systems, Electronic Components, Image Quality, Technology Solutions, Emerging Technologies, Physics
Build toward a degree
Advanced · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Keyword Research, Search Engine Optimization, Web Analytics and SEO, Search Engine Marketing, Content Strategy, Competitive Analysis, Forecasting, Content Performance Analysis, Expectation Management, Relationship Management, Content Marketing, Content Creation, Marketing, A/B Testing, Key Performance Indicators (KPIs), Goal Setting, Internal Auditing
Intermediate · Course · 1 - 4 Weeks

Keller Williams
Skills you'll gain: Lead Generation, Real Estate, Real Estate Sales, Property and Real Estate, Customer Relationship Building, Database Management, Sales Process, Client Services, Sales Prospecting, Prioritization, Goal Setting, Market Data, Market Analysis, Calendar Management, Market Trend, Compensation Management
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Software Design Documents, System Design and Implementation, Internet Of Things, Technical Documentation, Technical Communication, Mobile Development, Test Case, System Testing, Software Development, Wireless Networks, Embedded Systems, Systems Integration
Mixed · Course · 1 - 4 Weeks

NVIDIA
Skills you'll gain: OSI Models, TCP/IP, Data Centers, Network Protocols, Network Infrastructure, Local Area Networks, General Networking, Network Architecture, Computer Networking, Network Planning And Design, Network Switches, System Requirements
Beginner · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Photography, Photo Editing, Photo/Video Production and Technology, Storytelling, Landscape Architecture, Geographic Information Systems, Global Positioning Systems, Creativity, Planning, Research, Timelines, Creative Thinking, Adobe Creative Cloud, Design Elements And Principles, Aesthetics, Critical Thinking
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Field-Programmable Gate Array (FPGA), Hardware Design, Electronic Hardware, Program Development, Electronic Systems, System Design and Implementation, Eclipse (Software), Embedded Software, Embedded Systems, Development Environment, Software Development, Integrated Development Environments, Software Development Tools, Engineering Documentation, Build Tools, Laboratory Experience, Laboratory Reports, Laboratory Testing
Intermediate · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Immunology, Public Health, Infectious Diseases, Anatomy, Preventative Care, Molecular Biology, Chronic Diseases, Physiology, Hematology, Medical Terminology, Oncology, Microbiology, Cell Biology, Biochemistry, Pathology, Drug Development, Diagnostic Tests, Pharmacology, Biology
Intermediate · Specialization · 3 - 6 Months