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.

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Embedded Systems, Embedded Software, Hardware Architecture, Electronic Systems, System Programming, Operating Systems, Ubuntu, Linux, System Requirements, System Design and Implementation, C (Programming Language), Algorithms
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: User Accounts, No-Code Development, Application Design, Data Structures, User Interface (UI)
Beginner · Course · 1 - 4 Weeks

Yeshiva University
Skills you'll gain: Ancient History, Art History, World History, Research, Color Theory, Timelines, Cultural Diversity, Storytelling
Mixed · Course · 1 - 3 Months

Multiple educators
Skills you'll gain: Storytelling, Data Storytelling, Business Strategy, Design Thinking, Business Strategies, Sustainable Business, Brand Strategy, Business Solutions, Innovation, Presentations, Market Opportunities, Business Modeling, Business Risk Management, Design and Product, Branding, Strategic Thinking, Process Design, Digital Transformation, Persuasive Communication, Technology Strategies
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Post-Production, 3D Modeling, Video Production, Color Theory
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cloud Computing Architecture, Cloud Security, Cloud Computing, Incident Response, IT Security Architecture, Capacity Management, Application Security, Security Controls, Network Security, Hardening, Scalability, Emerging Technologies, Identity and Access Management, Encryption
Intermediate · Course · 1 - 4 Weeks

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

University of Colorado System
Skills you'll gain: Estimation, Applied Mathematics, Numerical Analysis, Mathematical Modeling, Control Systems, Simulation and Simulation Software, Probability & Statistics, System Implementation, Computer Programming Tools
Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Amazon CloudWatch, Amazon Web Services, System Monitoring, Event Monitoring, Network Monitoring, AWS Identity and Access Management (IAM), Continuous Monitoring, Application Performance Management, Amazon Elastic Compute Cloud, Cloud Computing, Load Balancing
Beginner · 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

Johns Hopkins University
Skills you'll gain: Shiny (R Package), Rmarkdown, Regression Analysis, Exploratory Data Analysis, Statistical Inference, Predictive Modeling, Statistical Hypothesis Testing, Machine Learning Algorithms, Plotly, Interactive Data Visualization, Probability & Statistics, Data Presentation, Data Visualization, Feature Engineering, Statistical Analysis, Statistical Modeling, R Programming, Data Science, Machine Learning, GitHub
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Intrusion Detection and Prevention, Continuous Monitoring
Beginner · Course · 1 - 4 Weeks