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.

Clemson University
Skills you'll gain: Data Structures, Algorithms, Theoretical Computer Science, Computer Programming, Computer Science, Probability, Design Strategies, Analysis
★ 4.2 (39) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Application Programming Interface (API), Javascript, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Medical Terminology, Pathology, Medical Records, Anatomy, Cell Biology, Physiology, Diagnostic Tests, Nutrition and Diet
★ 4.7 (191) · Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Financial Statements, Financial Statement Analysis, Return On Investment, Accrual Accounting, Financial Accounting, Capital Budgeting, Financial Reporting, Accruals, Accounting, Finance, Inventory Accounting, Financial Analysis, Balance Sheet, Financial Acumen, Portfolio Management, Income Statement, Financial Forecasting, Equities, Generally Accepted Accounting Principles (GAAP), Corporate Finance
★ 4.6 (14K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Object Oriented Programming (OOP), Javascript, Code Reusability, Web Development, Application Programming Interface (API), Web Applications, API Testing, Debugging
Beginner · Course · 1 - 3 Months
Skills you'll gain: Computer Networking, Network Troubleshooting, Network Administration, TCP/IP, General Networking, Network Architecture, Routing Protocols, Network Protocols, Networking Hardware, OSI Models, Network Routers, Network Routing, Network Infrastructure, Dynamic Host Configuration Protocol (DHCP), Network Security, Wireless Networks, Network Model, Data Integrity
★ 4.7 (53K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Hypertext Markup Language (HTML), Frontend Performance, HTML and CSS, Web Applications, Javascript, Performance Tuning, Software Development
Intermediate · Guided Project · Less Than 2 Hours

University of Arizona
Skills you'll gain: Physical Science, Physics, Engineering, Scientific, and Technical Instruments, Ancient History, Life Sciences, Chemistry, electromagnetics, General Science and Research, Scientific Methods, Research
★ 4.8 (4K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Flutter (Software), Mobile Development, iOS Development, Apple iOS, Mobile Development Tools, User Interface (UI), User Interface (UI) Design, Android Development, Other Mobile Programming Languages, User Interface and User Experience (UI/UX) Design, Application Development, UI Components, Cross Platform Development, Application Programming Interface (API), Software Development Tools, Application Frameworks, Development Environment, Debugging, Software Development
★ 4.4 (171) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Accounts Payable, Accounts Payable and Receivable, Accounts Receivable, Billing & Invoicing, Invoicing, Accounting Software, Workflow Management, Payment Processing, Accounting Records, Data Entry, Business Process Automation, Tax Compliance, Document Management, Spreadsheet Software, Excel Formulas, Financial Controls, Verification And Validation
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Life Sciences, Molecular Biology, Molecular, Cellular, and Microbiology, Biology, Biotechnology, Environment, Taxonomy, Scientific Methods
★ 4.8 (1.9K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Web Development Tools, Javascript, Context Management, Debugging
Intermediate · Course · 1 - 3 Months