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.

Rice University
Skills you'll gain: Growth Mindedness, Stress Management, Resilience, Mindfulness, Personal Development, Self-Awareness, Compassion, Personal Attributes, Positivity, Empathy, Mental Health, Mental Concentration, Interpersonal Communications, Communication, Emotional Intelligence, Behavioral Health, Cognitive flexibility, Sustainable Development, Social Justice, Persistence
Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Bayesian Network, Numerical Analysis, Estimation, Simulations, Matlab, Global Positioning Systems, Mathematical Modeling, Applied Mathematics, Computational Thinking, Engineering Analysis, Algorithms, Computer Programming Tools
Intermediate · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: High Voltage, Power Electronics, Electrical Equipment, Electronic Systems, Basic Electrical Systems, Control Systems, Test Equipment, Electric Power Systems, Wiring Diagram, Hardware Troubleshooting, Electrical Safety, Sustainable Technologies, Thermal Management, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Theoretical Computer Science, Computer Programming, Algorithms, Computer Science, Formal Learning, Software Engineering, Program Development, Text Mining, Data Science, Analysis, Machine Learning Methods, Debugging, Technical Analysis
Intermediate · Course · 1 - 3 Months

American Museum of Natural History
Skills you'll gain: Life Sciences, Biology, Environment, Taxonomy, Laboratory Research, Science and Research, Scientific Methods, Estimation, Research, Research Methodologies, Medical Imaging, Environmental Science
Beginner · Course · 1 - 3 Months

Edureka
Skills you'll gain: API Design, API Gateway, Application Programming Interface (API), Postman API Platform, Restful API, Data Validation, Authentications, OAuth, Cloud API, Microservices, Application Deployment, CI/CD, Open Web Application Security Project (OWASP), Authorization (Computing), Application Frameworks, Performance Tuning, Application Lifecycle Management, Test Automation, Prometheus (Software), Grafana
Intermediate · Specialization · 1 - 3 Months

University of Michigan
Skills you'll gain: Object Oriented Programming (OOP), JSON, Object Oriented Design, Unit Testing, Python Programming, Debugging, Software Testing, Data Structures
Intermediate · Course · 1 - 4 Weeks

Tableau Learning Partner
Skills you'll gain: Tableau Software, Data Visualization Software, Dashboard, Business Analytics, Business Intelligence, Data Integration, Data Cleansing, Data Transformation, Data Processing, Performance Tuning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, IT Security Architecture, Network Security, Internet Of Things, Threat Detection, Cloud Security, Infrastructure Security, Vulnerability Management, Identity and Access Management, Information Systems Security, Encryption, Incident Response, Security Engineering, Threat Management, Cybersecurity, Security Controls, Penetration Testing, Vulnerability Assessments, Cloud Solutions, Data Security
Intermediate · Specialization · 1 - 3 Months

Lecturio
Skills you'll gain: Molecular Biology, Biochemistry, Cell Biology, Pharmacology, Biology
Intermediate · Course · 1 - 4 Weeks

École normale supérieure
Skills you'll gain: Sampling (Statistics), Physics, Simulations, Computational Logic, Numerical Analysis, Markov Model, Quantitative Research, Algorithms, Applied Mathematics, Linear Algebra, Integral Calculus
Mixed · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Arithmetic, Geometry, Mathematical Theory & Analysis, Advanced Mathematics, Combinatorics, Algebra, Mathematical Modeling, Applied Mathematics
Beginner · Course · 1 - 4 Weeks