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.

Duke University
Skills you'll gain: Debugging, File I/O, Programming Principles, Maintainability, Software Testing, Program Development, C (Programming Language), Algorithms, Simulations, System Programming, Computer Programming, Data Structures, Software Development, Software Engineering, Command-Line Interface, Development Environment, User Interface (UI), Solution Design, Problem Solving, Software Design
Beginner · Specialization · 3 - 6 Months

AI CERTs
Skills you'll gain: Prompt Engineering, Prompt Engineering Tools, Prompt Patterns, Responsible AI, OpenAI, LLM Application, Generative AI, LangChain, Generative AI Agents, ChatGPT, Vibe coding, Natural Language Processing, Artificial Intelligence, AI Personalization, Debugging, Ideation, Productivity, Code Review, Computer Programming Tools, Ethical Standards And Conduct
Beginner · Course · 1 - 3 Months

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

Skills you'll gain: AI Workflows, Agentic systems, AI Orchestration, AI Enablement, Advanced Analytics, Data Processing, Enterprise Architecture, Automation, Data Transformation, Artificial Intelligence, Continuous Improvement Process, Data Quality, Application Deployment, Scalability, Performance Tuning, Business Metrics, Software Design Patterns
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Mobile Security, AI Security, Threat Detection, Security Controls, Exploit development, Threat Modeling, Hardening, Threat Management, Endpoint Security, Artificial Intelligence, Mobile Development Tools, Deep Learning, Incident Response, Information Privacy
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Data Pipelines, Apache Kafka, Operational Databases, Continuous Monitoring, Real Time Data, Data Integrity, Data Warehousing, Data Modeling, Software Versioning, Continuous Integration, Data Validation, Automation, Warehouse Management, Automation Engineering
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Heat Maps, Data Presentation, Statistical Visualization, Web Content Accessibility Guidelines, Customer Retention, Plot (Graphics), Timelines, Data Visualization Software, Tableau Software, Stakeholder Communications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Technical Drawing, Engineering Documentation, Engineering Drawings, Architectural Drawing, Geometric Dimensioning And Tolerancing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, LLM Application, Cyber Security Assessment, Large Language Modeling, Continuous Monitoring, Security Testing, Responsible AI, Threat Modeling, Vulnerability Assessments, Prompt Engineering, Security Controls, Penetration Testing, Vulnerability Scanning, Security Strategy, AI Personalization, Scenario Testing, System Implementation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Cloud Services, Virtualization, Cloud Computing, Virtual Machines, Cloud Storage, Cloud Infrastructure, Public Cloud, Virtual Networking, Scalability
Beginner · Course · 1 - 4 Weeks

Fudan University
Skills you'll gain: Storyboarding, Video Production, Videography, Cinematography, Photography, Storytelling, Editing
Mixed · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Electric Power Systems, Materials science, Chemistry, Electrical Safety, Energy and Utilities, Performance Testing, Sustainable Technologies, Electronics, Manufacturing Processes
Beginner · Course · 1 - 4 Weeks