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.

LearnQuest
Skills you'll gain: Containerization, Package and Software Management, Software Testing, Docker (Software), Unit Testing, Scripting, Development Testing, CI/CD, Test Automation, Integration Testing, DevOps, Python Programming, Web Scraping
Beginner · Course · 1 - 4 Weeks

Sungkyunkwan University
Skills you'll gain: Political Sciences, Social Studies, International Relations, Social Justice, Policy Analysis, Family Law, Social Sciences, World History, Culture, Diplomacy, Civil Law, Ethical Standards And Conduct, Governance
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Exploit development, Network Security, Vulnerability, Cybersecurity, Vulnerability Assessments, Information Systems Security, Software Installation, Virtual Machines
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Intrusion Detection and Prevention, Continuous Monitoring, Threat Management, Firewall, Incident Response, Network Security, Threat Detection, Network Monitoring, Information Systems Security, Infrastructure Security, Cybersecurity
Advanced · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Sustainable Business, Sustainability Reporting, Corporate Sustainability, Environmental Social And Corporate Governance (ESG), Sustainable Development, Sustainability Standards, Business Reporting, Annual Reports, Strategic Leadership, Leadership, Organizational Structure, Climate Change Mitigation, Marketing Management, Accounting, Marketing, Communication, Stakeholder Analysis
Build toward a degree
Intermediate · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Identity and Access Management, Cloud Security, Network Security, Threat Detection, Amazon S3, Infrastructure Security, Data Security, Security Management, Vulnerability Management, Vulnerability Assessments, Application Security, Key Management, User Provisioning, Threat Management, Distributed Denial-Of-Service (DDoS) Attacks, Authorization (Computing), Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Color Theory, Typography, Creative Design, Design, Graphic and Visual Design, Visual Design, Design Elements And Principles, Branding
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Professional Networking, Interviewing Skills, Professional Development, Presentations, Data Science, Company, Product, and Service Knowledge, Recruitment, Writing, Business Research, Portfolio Management, Data Analysis, Job Analysis, Problem Solving, Communication, Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Product Lifecycle Management, Product Roadmaps, Product Management, Product Planning, New Product Development, Product Strategy, Project Management Life Cycle, Agile Product Development, Business Planning, User Requirements Documents, Team Building, Competitive Analysis, Market Research, Market Analysis, Marketing Strategies, Risk Management, Financial Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: Restful API, API Design, Node.JS, Software Documentation, JavaScript Frameworks, Web Services, Middleware, Authentications, JSON, Server Side, Web Applications, Authorization (Computing)
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Test Driven Development (TDD), Gherkin (Scripting Language), Code Coverage, Behavior-Driven Development, Software Testing, Unit Testing, Test Automation, Test Case, Test Data, Integration Testing, Restful API, Microservices
Intermediate · Course · 1 - 3 Months

Tsinghua University
Skills you'll gain: Cultural Diversity, Culture, English Language, Literacy, Writing, Interpersonal Communications, Grammar, Vocabulary
Intermediate · Course · 1 - 3 Months