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.

Coursera
Skills you'll gain: Model Evaluation, MLOps (Machine Learning Operations), Artificial Intelligence and Machine Learning (AI/ML), Sampling (Statistics), Statistical Methods, Model Deployment, Statistical Modeling, Human Machine Interfaces, Performance Metric, Performance Analysis, Applied Machine Learning, Anomaly Detection, Predictive Analytics
Intermediate · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Ancient History, Art History, Anthropology, Social Studies, Timelines, World History, Cultural Diversity, Research Methodologies, Investigation, Storytelling
Intermediate · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Open Web Application Security Project (OWASP), Debugging, DevSecOps, Penetration Testing, Cyber Security Strategy, Security Testing, Application Security, Continuous Monitoring, Software Testing, Development Testing, Cybersecurity, Vulnerability Assessments, Threat Modeling, White-Box Testing, Secure Coding, Vulnerability Management, Technical Communication
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Unit Testing, Data Structures, Java, Debugging, Computer Programming, Object Oriented Programming (OOP), Algorithms, Performance Tuning, Unstructured Data, Theoretical Computer Science
Intermediate · Course · 1 - 3 Months

The Chinese University of Hong Kong
Skills you'll gain: Art History, Ancient History, World History, Cultural Diversity, Anthropology, Sociology, Policy Analysis, Political Sciences, Economics, Governance
Mixed · Course · 1 - 3 Months
University of Colorado Boulder
Skills you'll gain: Social Media Campaigns, Campaign Management, Advertising Campaigns, Google Ads, Social Media, Social Media Strategy, Social Media Marketing, Digital Advertising, Instagram, Online Advertising, Search Engine Marketing, Pay Per Click Advertising, Facebook, Contextual Advertising, Advertising, Paid media, Content Creation, Press Releases, Target Audience, Content Development and Management
Beginner · Specialization · 3 - 6 Months
University of California, Irvine
Skills you'll gain: Grammar, Vocabulary, English Language, Oral Comprehension
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Looker (Software), Customer Retention, Web Analytics, Customer Analysis, Customer Insights, Marketing Analytics, Trend Analysis, Data Analysis, Product Management, Performance Metric, Analysis, Time Series Analysis and Forecasting, Strategic Marketing, Marketing Channel, Forecasting
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Supplier Management, Risk Mitigation, Supplier Relationship Management, Risk Management, Supplier Performance Management, Business Risk Management, Risk Analysis, Supply Chain Management, Contingency Planning, Supply Chain Planning, Technical Communication
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Control Systems, Process Control, Machine Controls, Automation Engineering, Manufacturing Processes, Embedded Software, Electrical and Computer Engineering, Embedded Systems, Electronics, Electronics Engineering, Test Equipment, Medical Imaging, Medical Devices, Electronic Components, Reliability, Product Testing
Build toward a degree
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Project Scoping, Timelines, Proposal Writing, Business Writing, Procurement, Requirements Management, Purchasing, Bidding, Project Documentation, Vendor Management, Facility Management, Decision Making
Beginner · Course · 1 - 4 Weeks

University of Virginia
Skills you'll gain: Plan Execution, Organizational Strategy, Business Strategy, Data-Driven Decision-Making, Strategic Leadership, Strategic Decision-Making, Strategic Thinking, Governance, Analysis, Corporate Strategy, Business Analysis, Competitive Analysis
Mixed · Course · 1 - 4 Weeks