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.

The Hong Kong University of Science and Technology
Skills you'll gain: White-Box Testing, Acceptance Testing, Software Development Methodologies, Configuration Management, Debugging, Software Development Life Cycle, Software Testing, Software Development, Software Engineering, Unified Modeling Language, System Testing, Integration Testing, User Acceptance Testing (UAT), Unit Testing, Secure Coding, Test Case, Requirements Analysis, Waterfall Methodology, Agile Methodology, Project Management
Intermediate · Course · 1 - 3 Months

University of Lausanne
Skills you'll gain: Laboratory Testing, Analytical Testing, Biochemistry, Legal Proceedings, Pharmacology, Sports Medicine, Culture, Social Sciences, Sociology, Social Determinants Of Health, Law, Regulation, and Compliance, Ethical Standards And Conduct
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Selling Techniques, Sales Strategy, Overcoming Objections, Closing (Sales), Sales Process, Customer Engagement, Sales Presentation, Solution Selling, Data-Driven Decision-Making, Customer Relationship Building, Value Propositions, Competitive Analysis, Price Negotiation, Rapport Building, Active Listening
Intermediate · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Research, Data Collection, Surveys, Scientific Methods, Research Methodologies, Persuasive Communication, Data Analysis, Case Studies, Information Management
Mixed · Course · 1 - 3 Months

Harvard Business Review
Skills you'll gain: Team Performance Management, Teamwork, Team Building, Team Management, Virtual Teams, Collaboration, Intercultural Competence, Team Leadership, Conflict Management, Cross-Functional Collaboration, Team Motivation, Productivity, Cultural Diversity, Cultural Sensitivity, Cultural Responsiveness, Meeting Facilitation, Drive Engagement, Safety Culture, Communication Strategies
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Communication, Presentations, Teamwork, Problem Solving, Public Speaking, Collaboration, Interpersonal Communications, Professional Development, Social Skills, Agile Project Management, Critical Thinking and Problem Solving, Solution Delivery, Composure
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management, User Accounts, Unix Commands, Unix, Bash (Scripting Language), Command-Line Interface, Kubernetes, Git (Version Control System), GitHub, OS Process Management, Firewall, Ubuntu, Docker (Software), Containerization, Network Monitoring, File Systems, Shell Script, TCP/IP, Scripting, Version Control
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Web Scraping, Data Integration, Data Cleansing, Data Import/Export, Data Quality, Data Preprocessing, Data Collection, Data Wrangling, Data Manipulation, SQL, MySQL, Databases, Query Languages, Pandas (Python Package), Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Windows Servers, Authorization (Computing), Microsoft Windows, Authentications, Operating System Administration, User Accounts, Group Policy, Microsoft Servers, Security Controls, Enterprise Security, Active Directory, Identity and Access Management, Servers, Computer Security, System Configuration, Encryption
Beginner · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), JUnit, HTML and CSS, Test Automation, Software Testing, Test Script Development, Web Development, Software Quality Assurance, Continuous Integration, Java, Test Execution Engine, Object Oriented Programming (OOP), Debugging
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Embedded Systems, Software Systems, Hardware Architecture, System Programming, Real Time Data, Operating Systems, Linux, OS Process Management, System Design and Implementation, System Requirements, Service Management, Service Design
Intermediate · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Risk Management Framework, Persuasive Communication, Storytelling, Influencing, Governance, Risk Management, Change Management, Organizational Change, Communication, Conflict Management, Leadership, Business Transformation, Risk Analysis, Negotiation, Operational Risk, Business Risk Management, Risk Mitigation, Intercultural Competence, Stakeholder Management, Process Management
Beginner · Specialization · 3 - 6 Months