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: Marketing Analytics, Anomaly Detection, Advanced Analytics, Bayesian Network, Data-Driven Decision-Making, Forecasting, Marketing Strategies, Strategic Decision-Making, Strategic Leadership, Time Series Analysis and Forecasting, Statistical Modeling, Simulation and Simulation Software, Predictive Analytics, Customer Retention, Reinforcement Learning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JSON, Application Programming Interface (API), Application Development, Data Access, Restful API, Python Programming, User Interface (UI)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Extensible Markup Language (XML), Data Import/Export, Data Mapping, Document Management, Web Content Accessibility Guidelines
Mixed · Course · 1 - 3 Months

Skills you'll gain: AI Workflows, Agentic Workflows, Generative AI Agents, AI Orchestration, Model Deployment, Robotic Process Automation, Automation, AI Enablement, No-Code Development, Prompt Engineering, LLM Application, MLOps (Machine Learning Operations), Process Optimization, System Monitoring, Tool Calling, Performance Analysis, Performance Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Financial Forecasting, Financial Modeling, Revenue Forecasting, Profit and Loss (P&L) Management, Business Modeling, Cost Estimation, Cash Flow Forecasting, Budget Management, Financial Analysis, Market Trend, Risk Mitigation, Variance Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Adobe Express, Presentations, Adobe Firefly, Adobe Acrobat, Adobe Illustrator, Adobe Creative Cloud, Content Creation, Responsible AI, Creative Design, Adobe Photoshop, Document Management, Visual Design, Digital Publishing, AI Workflows, Brand Awareness, Storytelling, Branding, Constructive Feedback, Ethical Standards And Conduct, Organizational Skills
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Rmarkdown, Box Plots, Plot (Graphics), Descriptive Statistics, Scatter Plots, Histogram, Jupyter, Matplotlib, Data Presentation, Ggplot2, Statistical Visualization, Data Manipulation, Statistical Hypothesis Testing, Regression Analysis, Correlation Analysis, Data Visualization, Data Visualization Software, Data Analysis, R Programming, Python Programming
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Retrieval-Augmented Generation, AI Workflows, Model Deployment, Transfer Learning, Application Deployment, Embeddings, Vector Databases, Model Evaluation
Advanced · Course · 1 - 3 Months

Skills you'll gain: Amazon Web Services, AWS Identity and Access Management (IAM), Amazon DynamoDB, Identity and Access Management, Database Management, Database Administration, NoSQL, Serverless Computing, Database Architecture and Administration, Authentications, Operational Databases, Cloud Security, Event-Driven Programming, AWS Kinesis, Cloud Applications, Amazon CloudWatch, Encryption, Load Balancing, Data Security, Key Management
Intermediate · Course · 1 - 4 Weeks

University of Washington
Skills you'll gain: Presentations, Public Speaking, Verbal Communication Skills, Infographics, Peer Review, Communication, Storytelling, Constructive Feedback, Communication Strategies, Concision, Diagram Design, Trustworthiness, Planning, Organizational Skills
Beginner · Course · 1 - 3 Months

Skills you'll gain: Redis, Microservices, Restful API, .NET Framework, Application Programming Interface (API), Object-Relational Mapping, API Design, PostgreSQL, Scalability, Maintainability, Database Design, Software Architecture, Software Design Patterns, Data Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Collaborative Software, Journals, Organizational Skills, Productivity, Timelines, Productivity Software, Project Management Software, Information Architecture, Project Management, Personal Development, Query Languages
Beginner · Guided Project · Less Than 2 Hours