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: Network Performance Management, Software-Defined Networking, Network Administration, Network Routing, Wide Area Networks, Network Monitoring, Disaster Recovery, Virtual Networking, Performance Tuning, General Networking, Network Engineering, Network Planning And Design, Network Troubleshooting, Network Security, Cyber Security Assessment, Vulnerability Scanning, Continuous Monitoring, Security Management, Patch Management, Application Performance Management
Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: C (Programming Language), Computer Architecture, Embedded Software, Computer Engineering, Computer Programming, Computer Science, Program Development, Data Structures, Linux, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Work Breakdown Structure, Calendar Management, Timelines, Project Schedules, Scheduling, Project Planning, Project Coordination, Project Management Software, Project Management, Milestones (Project Management), Relationship Management, Data Visualization, Data Import/Export
Beginner · Course · 1 - 3 Months

Skills you'll gain: Unity Engine, Debugging, C# (Programming Language), 3D Assets, Video Game Development, Scripting, Software Testing, User Interface (UI), Development Environment, Object Oriented Programming (OOP)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PySpark, Apache Spark, Data Visualization Software, Data Analysis, Exploratory Data Analysis, Data Cleansing, Data Processing, Data Manipulation, Big Data, Jupyter, Pandas (Python Package), People Analytics
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Real Estate, Land Management, Property and Real Estate, Commercial Real Estate, Investments, Investment Management, Market Dynamics, Economic Development, Environment and Resource Management, Economics, Market Trend, Sustainable Development, Socioeconomics
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: System Programming, Embedded Software, System Software, Linux, Embedded Systems, Real-Time Operating Systems, Debugging, Operating Systems, Peripheral Devices, Build Tools, File Systems, Shell Script, C (Programming Language), Development Environment
Advanced · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Blended Learning, Course Development, Web Content Accessibility Guidelines, Education Software and Technology, Digital pedagogy, Language Learning, Technology Strategies
Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Financial Accounting, Financial Reporting, Tax Management, Cash Flows, Technical Accounting, Balance Sheet, Equities, Generally Accepted Accounting Principles (GAAP), Financial Statements, International Financial Reporting Standards, Accounting, Income Statement, Benefits Administration, Compensation Management, Income Tax
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Programming Principles, Computational Logic, Software Development Tools, Development Environment, Secure Coding, Business Logic, Other Programming Languages, Program Development, Data Structures, Data Management, Development Testing, Debugging
Intermediate · Course · 1 - 3 Months

Banco Interamericano de Desarrollo
Skills you'll gain: Water Resources, Environment, Climate Change Adaptation, Environmental Resource Management, Water Sustainability, Environmental Science, Land Management, Sustainable Development, Education and Training, Climate Change Mitigation, Biology, Teaching
Beginner · Course · 1 - 4 Weeks

American Museum of Natural History
Skills you'll gain: Environmental Monitoring, Climate Change Adaptation, Systems Thinking, Climate Change Mitigation, Environment, Environmental Science, Hydrology, Environmental Issue, Physical Science, Data Collection, Mathematical Modeling
Intermediate · Course · 1 - 4 Weeks