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 Colorado System
Skills you'll gain: Contingency Planning, Disaster Recovery, Business Continuity Planning, Security Management, IT Management, System Monitoring, Cyber Security Policies, Enterprise Security, Compliance Auditing, Security Strategy, Systems Administration, Operating System Administration, Governance, Security Controls, Organizational Strategy, Patch Management, Continuous Monitoring, Unix, Procedure Development, Incident Response
Intermediate · Course · 1 - 3 Months

Nanyang Technological University, Singapore
Skills you'll gain: Criminal Investigation and Forensics, Scientific Methods, Chemistry, Blood Collection, Investigation, Case Studies, Biochemistry, Analytical Chemistry, Pharmacology, Laboratory Testing, Pathology, Molecular Biology, Deductive Reasoning, Estimation
Mixed · Course · 1 - 3 Months

Skills you'll gain: User Centered Design, User Experience Design, Responsive Web Design, User Interface (UI) Design, Web Design and Development, Prototyping, Graphic and Visual Design, User Interface and User Experience (UI/UX) Design, Figma (Design Software), Web Design, Wireframing, Typography, Layout Design, Interactive Design, Web Applications, Mobile Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management, Bash (Scripting Language), Git (Version Control System), GitHub, Version Control, Unix Shell, Ubuntu, Shell Script, Scripting, Unix, Scripting Languages, Unix Commands, Linux, System Configuration, Linux Administration, Linux Commands, File Management, Software Installation
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Mergers & Acquisitions, Financial Analysis, Financial Statement Analysis, Finance, Financial Modeling, Return On Investment, Investment Management, Capital Budgeting, Cash Management, Corporate Finance, Business Valuation, Cash Flow Forecasting, Working Capital, Performance Measurement, Risk Analysis
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Secure Coding, Kotlin, Mobile Security, Android (Operating System), Android Development, Open Web Application Security Project (OWASP), Mobile Development, Application Security, Mobile Development Tools, Data Validation, Data Cleansing, Data Security, Application Deployment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Team Building, Virtual Teams, Team Management, Conflict Management, Teamwork, Leadership, Project Management, Project Management Institute (PMI) Methodology, Intercultural Competence, Communication Strategies, Stakeholder Management, Communication, Emotional Intelligence, Goal Setting
Beginner · Course · 1 - 4 Weeks

Exploratorium
Skills you'll gain: Developing Training Materials, Collaboration, Creativity, Mechanics, Research, Creative Problem-Solving, Experimentation, Innovation, Mechanical Design, Aesthetics, Construction
Beginner · Course · 1 - 3 Months

University of Cape Town
Skills you'll gain: Environmental Issue, Climate Change Mitigation, Natural Resource Management, Environmental Science, Biology, Climate Change Adaptation, Life Sciences, Anthropology, Ancient History
Beginner · Course · 1 - 3 Months

Skills you'll gain: Ajax, jQuery, JSON, Debugging, JavaScript Frameworks, Application Programming Interface (API), Web Applications, Javascript, Game Design, HTML and CSS, User Interface (UI) Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: PyTorch (Machine Learning Library), Natural Language Processing, Generative Adversarial Networks (GANs), Transfer Learning, Vision Transformer (ViT), Deep Learning, Unsupervised Learning, Embeddings, Convolutional Neural Networks, Applied Machine Learning, Supervised Learning, Model Evaluation, Model Deployment, Flask (Web Framework)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: NSX-T Network Virtualization, Virtual Networking, Virtualization, Network Architecture, Disaster Recovery, Software-Defined Networking, Network Security, Business Continuity Planning, IT Automation, Firewall, Network Routing, Business Transformation, Application Security, Hybrid Cloud Computing
Intermediate · Course · 1 - 3 Months