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.

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

Tecnológico de Monterrey
Skills you'll gain: Critical Thinking, Organizational Leadership, Independent Thinking, Positivity, Self-Awareness, Stress Management, Leadership, Resilience, Influencing, Motivational Skills, Decision Making, Personal Development, Leadership Development, Industrial and Organizational Psychology, Strategic Thinking, Leadership and Management, Emotional Intelligence, Business Leadership, Systems Thinking, Research
Advanced · Specialization · 1 - 3 Months
IE Business School
Skills you'll gain: Content Marketing, Storytelling, Content Creation, Brand Strategy, Branding, Marketing Communications, Copywriting, Content Strategy, Journalism, Customer Engagement, Advertising, Brand Management, Promotional Strategies, Target Audience
Beginner · Course · 1 - 3 Months

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

University of Illinois Urbana-Champaign
Skills you'll gain: Mathematics Education, Education Software and Technology, Research, Science and Research, Qualitative Research
Mixed · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: File Systems, Endpoint Security, Linux, Operating System Administration, Microsoft Windows, Windows PowerShell, Linux Administration, Windows Servers, Operating Systems, Linux Commands, Network Administration, Active Directory, System Monitoring, System Configuration, Network Security, Security Controls, Command-Line Interface, Malware Protection, Service Management
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Change Orders, Change Control, Project Schedules, Timelines, Initiative and Leadership, Sprint Planning, Project Planning, Planning, Waterfall Methodology, Scheduling, Project Estimation, Analysis
Beginner · Course · 1 - 4 Weeks