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.

New York University
Skills you'll gain: Security Engineering, Authentications, Threat Modeling, Network Security, Public Key Infrastructure, Distributed Denial-Of-Service (DDoS) Attacks, Firewall, Cyber Attacks, Cryptography, Infrastructure Security, Cybersecurity, Cyber Security Strategy, Data Encryption Standard, Cyber Risk, Mobile Security, Enterprise Security, Computer Security, Application Security, Threat Detection, Cyber Security Policies
Beginner · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Secure Coding, API Testing, Application Programming Interface (API), Security Testing, Open Web Application Security Project (OWASP), Penetration Testing, Application Security, Restful API, Authentications, Personally Identifiable Information, Brute-force attacks, Security Engineering, Threat Modeling, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Assessments, Exploitation techniques, Data Security, Business Logic, Authorization (Computing), Cybersecurity
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Microservices, Cloud Applications, Software Architecture, Google Cloud Platform, Event-Driven Programming, Service Oriented Architecture, Cloud Services, Cloud Computing Architecture, Scalability
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cloud Computing, Cloud Infrastructure, Cloud Services, JavaScript Frameworks, Back-End Web Development, Cloud Deployment, DevOps, Full-Stack Web Development, OpenShift, Version Control, CI/CD, Application Frameworks, Software Development, Web Applications, Microservices, Containerization, Kubernetes, Web Development, Node.JS, Serverless Computing
Intermediate · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Music Theory, Musical Composition, Music, Peer Review, Instrumental Music, Music Performance, Media Production, Post-Production, Creativity, Timelines, Writing and Editing, Writing, Editing, Digital Signal Processing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Risk Management Framework, Cyber Security Strategy, Cyber Threat Intelligence, Threat Modeling, Security Strategy, Security Awareness, Cybersecurity, Security Engineering, IT Security Architecture, Zero Trust Network Access, Threat Management, Human Factors (Security), Security Controls, Threat Detection, Network Security, Information Systems Security, Incident Response, Enterprise Security, Continuous Monitoring
Intermediate · Course · 1 - 3 Months

Georgia Institute of Technology
Skills you'll gain: Game Theory, Combinatorics, Mathematical Theory & Analysis, Computational Logic, Mathematical Modeling
Mixed · Course · 1 - 3 Months

Skills you'll gain: Minitab, Predictive Analytics, Statistical Visualization, Data Visualization Software, Statistical Analysis, Data-Driven Decision-Making, Descriptive Statistics, Data Analysis, Regression Analysis, Data Manipulation
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Oil and Gas, Climate Change Programs, Environment, Governance, Energy and Utilities, Environmental Science, Environmental Monitoring, Physical Science, International Relations, Environmental Policy, Socioeconomics, Natural Resource Management, Hydrology, Economics, Cultural Diversity, Climate Change Adaptation, Geospatial Information and Technology, Geographic Information Systems, Mathematical Modeling, Transportation Operations
Beginner · Specialization · 3 - 6 Months

University of Cape Town
Skills you'll gain: Climate Change Adaptation, Water Resources, Water Sustainability, Sustainable Development, Environmental Policy, Water Resource Management, Environmental Science, Environment, Natural Resource Management, Socioeconomics, Vulnerability, Governance
Beginner · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Java Programming, Java, File I/O, Object Oriented Programming (OOP), Object Oriented Design, Programming Principles, Software Design, Computer Programming, Application Frameworks, Data Structures, Virtual Machines, Web Development, Data Persistence, Debugging, Package and Software Management, Development Environment
Intermediate · Specialization · 3 - 6 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Computational Logic, Logical Reasoning, Theoretical Computer Science, Deductive Reasoning, Data Structures, Computational Thinking, Computer Science, Algorithms
Beginner · Course · 1 - 3 Months