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.

Infosec
Skills you'll gain: Secure Coding, Application Security, System Programming, C++ (Programming Language), C (Programming Language), Unix, Embedded Systems, Debugging, Unix Commands, Operating Systems, Data Security, Linux, Microsoft Windows
Mixed · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Liberal Arts, Ethical Standards And Conduct, Research, Social Justice, Cultural Diversity, Culture, Writing, Political Sciences, Advocacy
Mixed · Course · 1 - 4 Weeks

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Game Design, Video Game Development, Live Streaming, Systems Thinking, Aesthetics, Social Sciences, Economics, Policy, and Social Studies, Interactive Design, Socioeconomics, Culture, Psychology, Storytelling, Journalism, User Experience, Media Strategy, Critical Thinking, Digital Media Strategy, Ethical Standards And Conduct
Beginner · Course · 1 - 3 Months

Skills you'll gain: Back-End Web Development, Server Side, Middleware, Authentications, Cloud API, API Design, Application Programming Interface (API), User Provisioning, User Accounts, Databases, JavaScript Frameworks, Scalability, Authorization (Computing), GitHub, Development Environment, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Encryption, Risk Management Framework, Multi-Factor Authentication, Information Systems Security, Cybersecurity, Identity and Access Management, Authentications, Personally Identifiable Information, Security Controls, Threat Management, Data Security, Information Privacy, Network Security, Authorization (Computing)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Reinforcement Learning, Generative Model Architectures, Deep Learning, Unsupervised Learning, Image Analysis, Artificial Neural Networks, Keras (Neural Network Library), Machine Learning Algorithms, Machine Learning, Artificial Intelligence, Computer Vision, Applied Machine Learning, Dimensionality Reduction, Natural Language Processing
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Water Quality, Hazard Analysis, Pollution Prevention, Food Safety and Sanitation, Environmental Issue, Laboratory Testing, Environmental Monitoring, Public Health, Environmental Engineering, Microbiology, Analytical Chemistry, Environmental Science, Biochemistry, Biology
Intermediate · Course · 1 - 4 Weeks

The George Washington University
Skills you'll gain: Law, Regulation, and Compliance, Health Equity, Informed Consent, Pharmaceuticals, Health Care Procedure and Regulation, Healthcare Ethics, Public Health and Disease Prevention, Health Disparities, Public Health, Health Policy, Regulation and Legal Compliance, Advocacy, Policy Analysis, Intellectual Property
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Semiconductors, Electrical Engineering, Electronic Systems, Electronic Components, Electronic Hardware, Electronics, Materials science, Mathematical Modeling
Build toward a degree
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: User Research, UI/UX Research, Prototyping, Design Research, User Experience, User Experience Design, User Interface and User Experience (UI/UX) Design, Persona (User Experience), Artificial Intelligence, Experience Design, User Centered Design, Prompt Patterns, User Interface (UI), Design, Design Thinking, User Interface (UI) Design, Wireframing, Presentations, Responsible AI, Professional Development
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cybersecurity, Threat Management, Cyber Attacks, Threat Detection, Cloud Security, Disaster Recovery, Network Security, Malware Protection, Data Security, Intrusion Detection and Prevention, Hardening, Systems Architecture, Encryption
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data Mining, Anomaly Detection, Unsupervised Learning, Data Warehousing, Data Pipelines, Data Processing, Supervised Learning, Data Integration, Data Modeling, Data Cleansing, Big Data, Data Science, Machine Learning Algorithms, Data Transformation, Exploratory Data Analysis, Classification And Regression Tree (CART), Data Quality, Analysis, Data Analysis, Data Presentation
Build toward a degree
Intermediate · Specialization · 1 - 3 Months