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.

Imperial College London
Skills you'll gain: Health Policy, Advocacy, Health Disparities, Social Determinants Of Health, Health Equity, Climate Change Adaptation, Community Health, Public Health, Policy Analysis, Health Systems, Environmental Policy, Health Care, Climate Change Programs, Environmental Issue, Sustainable Development, Climate Change Mitigation, International Relations, Socioeconomics, Policy Development, Governance
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Test Automation, Performance Testing, Software Testing, API Testing, Test Script Development, Security Testing, Test Tools, CI/CD, Regression Testing, JUnit, Selenium (Software), Scalability, Automation, Test Case, Application Programming Interface (API), Application Security
Beginner · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Blockchain, Key Management, Security Controls, Cryptography, Cybersecurity, Security Engineering, Application Security, Network Security, Vulnerability Assessments, Encryption, Secure Coding, Data Security, Distributed Denial-Of-Service (DDoS) Attacks, Public Key Cryptography Standards (PKCS), Security Testing, Vulnerability Management, Transaction Processing, Risk Management, Code Review, Data Integrity
Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Looker (Software), Dashboard, Data Visualization Software, Data Analysis, Data Sharing, Data Presentation, Data Manipulation, Data Import/Export
Beginner · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Creativity, Culture, Liberal Arts, Neurology, Research, Psychology, Social Sciences, Science and Research, Ethical Standards And Conduct, Anthropology, Sociology, Cultural Diversity, Governance
Mixed · Course · 1 - 4 Weeks

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

Skills you'll gain: UI/UX Research, Usability Testing, Presentations, User Experience Design, User Research, Mobile Development, Data Ethics, Research Design, Prototyping, Wireframing, Information Privacy
Beginner · Course · 1 - 4 Weeks
Johns Hopkins University
Skills you'll gain: Clinical Research Ethics, Clinical Trial Management Systems, Clinical Trials, Clinical Research, Good Clinical Practices (GCP), Institutional Review Board (IRB), Regulatory Compliance, Clinical Documentation, Scientific Methods, Record Keeping
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Persistence, JSON, User Interface (UI), User Interface and User Experience (UI/UX) Design, Database Development, Databases, Interactive Data Visualization, Debugging, Database Management, Application Development, Mobile Development, Real Time Data, Application Programming Interface (API), Data Management
Intermediate · Course · 1 - 4 Weeks

Yale University
Skills you'll gain: Maternal Health, Midwifery, Child Health, Postpartum Care, Prenatal Care, Health Disparities, Obstetrics And Gynecology, Primary Care, Dignity in Care, Social and Human Services, Patient-centered Care, Health Policy, Cultural Responsiveness, Advocacy, Education and Training
Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Go (Programming Language), Object Oriented Programming (OOP), Functional Design, Data Structures, Software Design, Debugging
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Robotics, Data Mapping, Real-Time Operating Systems, Simulations, Linear Algebra, Python Programming, Algorithms, Computer Programming
Build toward a degree
Intermediate · Course · 1 - 3 Months