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 System
Skills you'll gain: Tidyverse (R Package), Clinical Data Management, Extract, Transform, Load, Data Modeling, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Medical Privacy, Data Manipulation, Predictive Modeling, Database Design, Clinical Informatics, Google Cloud Platform, Intensive Care Unit, Data Ethics, Data Quality, Risk Modeling, Natural Language Processing, Bioinformatics, Informatics, Text Mining, R Programming
Intermediate · Specialization · 3 - 6 Months

Intuit
Skills you'll gain: Reconciliation, Financial Statements, Financial Statement Analysis, Income Statement, Balance Sheet, Financial Reporting, Financial Analysis, Accounting, Analysis, Business Metrics, General Accounting, Cash Flows, Sales Tax, Accounts Payable, Equities, Payroll
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Jest (JavaScript Testing Framework), Unit Testing, Test Case, React.js, Test Driven Development (TDD), Software Testing, Web Development Tools, Ajax, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Bioinformatics, Data Structures, Jupyter, Python Programming, Programming Principles, Object Oriented Programming (OOP), Scripting, Data Processing, Package and Software Management, Data Manipulation, File Management
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft PowerPoint, Presentations, Data Storytelling, Verbal Communication Skills, Public Speaking, Business Communication, Data Visualization, Storytelling, Communication, Peer Review, Communication Strategies, Data Analysis, Target Audience
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Event-Driven Programming, Ajax, Javascript, Web Development Tools, Application Programming Interface (API), JSON, Game Design, Restful API, Animation and Game Design, Software Development
Intermediate · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Programming Principles, Python Programming, Development Environment, Computer Programming, Integrated Development Environments, Debugging
Beginner · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Data Structures, Distributed Computing, Algorithms, Functional Design, Scalability, Other Programming Languages, Java, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Immunology, Public Health, Infectious Diseases, Anatomy, Preventative Care, Molecular Biology, Chronic Diseases, Physiology, Hematology, Medical Terminology, Oncology, Microbiology, Cell Biology, Pathology, Drug Development, Diagnostic Tests, Pharmacology, Biology, Biochemistry
Intermediate · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Systems Development, Systems Development Life Cycle, Agile Methodology, Productivity Software, Network Security, Computer Hardware, Hardware Architecture, Computer Systems, Data Security, Risk Management, System Design and Implementation, TCP/IP, Information Technology, Software Development Methodologies, Data Ethics, Cybersecurity, General Networking, Productivity, Safety and Security, Process Design
Beginner · Specialization · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: Hardware Design, Security Engineering, Computer Hardware, Hardware Architecture, Threat Modeling, Threat Detection, Cybersecurity, Vulnerability Assessments, Application Specific Integrated Circuits, Exploit development, Cryptography, Systems Design, Encryption, Exploitation techniques, Technical Design, Emerging Technologies
Mixed · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Nephrology, Dialysis, Patient Education And Counseling, Chronic Diseases, Physiology, Home Health Care, Nursing Care, Hand Hygiene, Clinical Nutrition, Asepsis, Anatomy
Mixed · Course · 1 - 3 Months