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.

Parsons School of Design, The New School
Skills you'll gain: Environment Health And Safety, Health Disparities, Sustainable Architecture, Building Design, Sustainable Design, Hazard Analysis, Chemical and Biomedical Engineering, Environmental Science, Environmental Issue, Sustainability Standards, Social Justice, Product Lifecycle Management
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Sales Presentations, Closing (Sales), Negotiation, Data Visualization, Sales Training, Contract Negotiation, Price Negotiation, B2B Sales, Influencing, Persuasive Communication, Storytelling, Behavioral Economics, Overcoming Objections, Value Propositions, Communication Strategies
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Threat Intelligence, Cyber Threat Hunting, Threat Detection, Vulnerability Assessments, Incident Response, Security Information and Event Management (SIEM), Cybersecurity, Threat Management, IT Security Architecture, Cloud Security, Cyber Risk, Intrusion Detection and Prevention, Cyber Security Policies, Data Security, Network Security, Cyber Security Strategy, Personally Identifiable Information, Malware Protection, Security Controls, Risk Management
Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: Virtual Teams, Sales Presentation, Sales, Rapport Building, Relationship Building, Non-Verbal Communication, Virtual Environment, Customer Engagement, Drive Engagement, Microsoft Teams, Global Marketing, Brand Management, Overcoming Objections, Executive Presence, Communication Strategies, Trustworthiness
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Linear Algebra, Artificial Intelligence and Machine Learning (AI/ML), Numerical Analysis, Geometry, Applied Mathematics, Algebra, Mathematical Modeling
Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Marketing Analytics, Web Analytics, Google Analytics, Key Performance Indicators (KPIs), Marketing Effectiveness, Performance Measurement, Business Metrics, Performance Metric, Marketing Strategies, Digital Marketing, Data-Driven Decision-Making, Return On Investment, Analytics, Heat Maps, Customer Engagement
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Authentications, Cloud Security, Cybersecurity, Threat Detection, Security Awareness, Cyber Attacks, Network Security, Vulnerability Assessments, Cloud Computing, Data Security, Identity and Access Management, Human Factors (Security), Software As A Service
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Embedded Software, Embedded Systems, Debugging, Model Based Systems Engineering, Computer Engineering, Failure Analysis, Simulation and Simulation Software, Technical Communication, Electronics Engineering, Automation Engineering
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Autism Spectrum Disorders, Individualized Education Programs (IEP), Special Education, Nutrition Education, Community Health, School Psychology, Chronic Diseases, Case Studies, Student Support and Services, Nutrition and Diet, Empathy & Emotional Intelligence, Health Education, Health Promotion, School Counseling, Mental and Behavioral Health Specialties, Parent Communication, Care Management, Communication Disorders, Neurology, Behavioral Health
Beginner · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: Sampling (Statistics), Sample Size Determination, Data Collection, Surveys, Quantitative Research, Statistical Methods, Statistical Analysis, Statistical Software, Probability & Statistics, Probability, Network Analysis
Beginner · Course · 1 - 3 Months
CertNexus
Skills you'll gain: Extract, Transform, Load, Data Migration, Data Manipulation, Data Preprocessing, Data Cleansing, Data Transformation, Data Warehousing, Data Integration, Data Collection, Data Mining, SQL
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Hardware Troubleshooting, Computer Hardware, Computer Architecture, Desktop Support, Data Storage Technologies, System Configuration, USB, Peripheral Devices, System Support
Beginner · Course · 1 - 3 Months