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: Video Game Development, Animations, Event-Driven Programming, Animation and Game Design, Game Design, Storyboarding, 3D Assets, Programming Principles, Computer Graphics, Computer Programming, Scripting, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Lean Methodologies, Process Improvement, Lean Six Sigma, Statistical Process Controls, Continuous Improvement Process, Process Optimization, Quality Control, Process Capability, Employee Training, Operational Efficiency, Waste Minimization, Data-Driven Decision-Making
Beginner · Course · 1 - 3 Months

Skills you'll gain: Incident Response, Computer Security Incident Management, Open Web Application Security Project (OWASP), Application Security, Secure Coding, Cloud Security, Cybersecurity, Vulnerability Assessments, Cyber Attacks, Information Systems Security, Security Engineering, Metasploit, Security Strategy, Infrastructure Security, Incident Management, Vulnerability Scanning, Security Testing, Hardening, Penetration Testing, Mobile Security
Advanced · Course · 1 - 3 Months

American Psychological Association
Skills you'll gain: Diversity Awareness, Sociology, Psychology, Cultural Diversity, Human Development, Social Sciences, Learning Theory, Biology, Research
Beginner · Course · 3 - 6 Months

Skills you'll gain: Microservices, Node.JS, API Gateway, Application Deployment, Software Architecture, Cloud Applications, Application Design, Web Services, Restful API, Communication Strategies
Mixed · Course · 1 - 4 Weeks

Technical University of Denmark (DTU)
Skills you'll gain: Bioinformatics, Molecular Biology, Microbiology, Infectious Diseases, Medical Science and Research, Database Development, Taxonomy, Data Pipelines
Beginner · Course · 1 - 3 Months

University of Toronto
Skills you'll gain: Mindfulness, Active Listening, Stress Management, Empowerment, De-escalation Techniques, Personal Development, Emotional Intelligence, Biology, Social Skills, Resilience, Physiology, Communication Strategies
Beginner · Course · 1 - 4 Weeks

University of Florida
Skills you'll gain: Nutrition and Diet, Preventative Care, Care Management, Behavior Management, Anatomy, Vital Signs, Physiology, Infectious Diseases, Pharmacology, First Aid, Psychology
Mixed · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: AWS Identity and Access Management (IAM), Identity and Access Management, Amazon Web Services, Amazon S3, Authorization (Computing), Role-Based Access Control (RBAC), Authentications, Single Sign-On (SSO), User Accounts, Data Security, Multi-Factor Authentication, Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Deployment, GitHub, Cloud Deployment, Performance Tuning, Jest (JavaScript Testing Framework), Web Development Tools, Unit Testing, System Monitoring, Performance Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Product Quality (QA/QC), Quality Control, Quality Assurance, Safety Standards, Good Manufacturing Practices, Safety Assurance, Statistical Process Controls, Standard Operating Procedure, Laboratory Testing, Chemistry, Regulatory Affairs, Regulatory Requirements, Product Testing, Regulatory Compliance, Microbiology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React Native, Mobile Development, iOS Development, Android Development, UI Components, Cross Platform Development, React Redux, Application Development, React.js, Development Environment, Debugging, Context Management, Software Development, Data Persistence, Performance Tuning, Data Validation
Intermediate · Course · 1 - 3 Months