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: Mathematical Modeling, Advanced Mathematics, Mathematical Theory & Analysis, Applied Mathematics, Algebra, Arithmetic, Graphing, Engineering Calculations
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: 3D Modeling, 3D Assets, Computer Graphics, Virtual Environment, Visualization (Computer Graphics), Architectural Design, Performance Tuning, Building Design, Frontend Performance, Structural Engineering, Image Quality, Aesthetics
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Collaborative Software, Taking Meeting Minutes, Meeting Facilitation, Project Documentation, Productivity Software, Document Management, Team Oriented, Delegation Skills, Workflow Management, Accountability, Team Management, Decision Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Firewall, Ubuntu, Network Monitoring, TCP/IP, Data Storage, Network Protocols, Network Troubleshooting, Unix, General Networking, Linux, Command-Line Interface, Data Storage Technologies, System Configuration, Network Security, File Management, Shell Script, Computer Hardware, Disaster Recovery
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Software Design Patterns, Middleware
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: File I/O, Simulations, C (Programming Language), Computational Thinking, Automation, Algorithms, Data Structures, Theoretical Computer Science, Programming Principles, Debugging
Beginner · Course · 1 - 4 Weeks

The State University of New York
Skills you'll gain: Law, Regulation, and Compliance, Data-Driven Decision-Making, Data Analysis, Regulation and Legal Compliance, Analytics, Trend Analysis, Data Management, Contract Management, Contract Negotiation, Negotiation, Relationship Building, Ethical Standards And Conduct, Operations Management
Beginner · Course · 1 - 3 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

Northwestern University
Skills you'll gain: Music Theory, Music, Instrumental Music, Music Performance, Classical Music, Lecturing, Coordination
Mixed · Course · 1 - 3 Months

ESSEC Business School
Skills you'll gain: Business Modeling, Entrepreneurship, Business Planning, Business Risk Management, Risk Management, Teamwork, Design Thinking, Ideation, Planning, Strategic Thinking, Innovation, New Business Development, Creative Thinking, Decision Making, Open Mindset, Lean Methodologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Version Control, Test Script Development, Continuous Integration, Test Execution Engine, Test Tools, Automation, Scripting, Web Scraping, Hypertext Markup Language (HTML), Software Design Patterns, Development Environment, Integrated Development Environments, Debugging, Command-Line Interface, File I/O
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Software Architecture, Solution Architecture, Business Architecture, Enterprise Architecture, Microservices, Cloud Computing Architecture, Service Oriented Architecture, Software Design, Business Process Modeling, Software Design Patterns, Technology Strategies, Process Design, Event-Driven Programming, Serverless Computing, Digital Transformation, Agile Software Development, Scalability, Distributed Computing, Restful API, Innovation
Intermediate · Course · 1 - 3 Months