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.

LearnKartS
Skills you'll gain: Salesforce, Authentications, Salesforce Development, Role-Based Access Control (RBAC), Identity and Access Management, Security Controls, Data Security, Authorization (Computing), Event Monitoring, Application Security, Data Sharing, Security Information and Event Management (SIEM), Responsive Web Design, User Accounts, Mobile Development, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Embedded Systems, Real Time Data, Software Design, Software Systems, System Programming, System Design and Implementation, Linux, Performance Tuning, Systems Analysis, C (Programming Language), Verification And Validation, Algorithms, Debugging
Advanced · Course · 1 - 4 Weeks

Georgia Institute of Technology
Skills you'll gain: Electronic Components, Semiconductors, Electronics, Electrical Engineering, Basic Electrical Systems, Electronics Engineering, Engineering Analysis, Schematic Diagrams
Mixed · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Intellectual Property, Legal Risk, Responsible AI, General Data Protection Regulation (GDPR), Law, Regulation, and Compliance, Regulation and Legal Compliance, Information Privacy, Artificial Intelligence, Civil Law
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Transportation, Supply Chain, and Logistics, Transportation Operations, Supply Chain Planning, Logistics Management, Shipping and Receiving, Service Design
Beginner · Course · 1 - 3 Months

Skills you'll gain: Encryption, Cybersecurity, Cyber Attacks, Threat Management, Security Strategy, Authentications, Threat Detection, Network Security, Authorization (Computing), Cryptography, Data Security, Active Directory, Identity and Access Management, Firewall, Multi-Factor Authentication
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Technical Communication, Generative AI Agents, Data Integration, Business Transformation, Application Deployment, Digital Transformation, Continuous Monitoring, Leadership, Agentic systems, Business Leadership, Compliance Management, Continuous Deployment, Stakeholder Communications, Regulatory Compliance, Dashboard, Cloud-Native Computing, CI/CD, Stakeholder Management, Artificial Intelligence and Machine Learning (AI/ML), System Monitoring
Beginner · Course · 1 - 4 Weeks

Institut Mines-Télécom
Skills you'll gain: Internet Of Things, Wireless Networks, General Networking, Network Routing, Local Area Networks, Network Architecture, Network Protocols, Network Performance Management, Computer Networking, Communication Systems
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Biological Engineering, Bioinformatics, Simulation and Simulation Software, Mathematical Modeling, Engineering Analysis, Simulations, Computational Logic, Differential Equations, Numerical Analysis, Computer-Aided Design, Algorithms
Build toward a degree
Intermediate · Course · 1 - 3 Months
University of California San Diego
Skills you'll gain: Statistical Analysis, Experimentation, Usability Testing, A/B Testing, Statistical Hypothesis Testing, Data Analysis, UI/UX Research, R Programming, User Experience, Probability & Statistics, Human Computer Interaction, Statistics, Statistical Modeling, Regression Analysis
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Routing Protocols, Network Routing, TCP/IP, Network Protocols, Network Architecture, Network Performance Management, Computer Networking, OSI Models, Local Area Networks, Algorithms
Intermediate · Course · 1 - 3 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Coordination, Professional Networking, Labor Compliance, Communication, Organizational Skills, Branding, Diversity and Inclusion
Beginner · Course · 1 - 4 Weeks