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.

Coursera
Skills you'll gain: A/B Testing, Data-Driven Decision-Making, Business Analytics, Statistical Methods, Statistical Hypothesis Testing, Statistics, Estimation, Decision Making, Data Analysis, Analytical Skills, Statistical Inference, Statistical Analysis, Web Analytics, Sample Size Determination
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Timelines, Project Portfolio Management, Project Coordination, Resource Allocation, Resource Management, Project Management, Resource Utilization, Dependency Analysis, Scheduling, Operational Efficiency, Process Improvement, Portfolio Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Prompt Patterns, AI Workflows, AI Orchestration, Salesforce, Agentic Workflows, Generative AI Agents, AI Enablement, Agentic systems, Responsible AI, Artificial Intelligence, Workflow Management, AI Security, Performance Testing, Data Governance, Enterprise Architecture, Business Logic, Customer Relationship Management (CRM) Software, Model Evaluation, Application Lifecycle Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Photo Editing, Generative AI, Adobe Photoshop, Image Quality, Data Import/Export, Adobe Creative Cloud, Prompt Engineering, Editing, File Management, Graphic Design
Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Land Development, Landscape Architecture, Environmental Science, Sustainable Development, Case Studies, Community Development, Public Works, Sustainable Design, Environment and Resource Management, Building Codes, Cultural Diversity
Intermediate · Course · 1 - 4 Weeks

Universidad Austral
Skills you'll gain: Law, Regulation, and Compliance, Labor Law, European History, Governance, Political Sciences, World History, Culture, Sociology, Socioeconomics
Beginner · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Model Evaluation, Deep Learning, Statistical Analysis, Clinical Trials, Data Preprocessing, Risk Modeling, Treatment Planning, Data Analysis, Convolutional Neural Networks, Decision Tree Learning, Predictive Modeling, Feature Engineering, Patient Treatment, Image Analysis, Applied Machine Learning, AI Personalization, Diagnostic Radiology, Machine Learning, Random Forest Algorithm, Forecasting
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Workflow Management, User Feedback, Automation, Performance Measurement, Project Management Software, Performance Improvement, Process Improvement, Data-Driven Decision-Making, Prioritization, Systems Integration
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: ASP.NET, Middleware, .NET Framework, C# (Programming Language), Model View Controller, Back-End Web Development, Web Development, Restful API, Server Side, Full-Stack Web Development, Web Applications, Application Frameworks, Object-Relational Mapping, Microsoft SQL Servers, Data Validation, Data Migration
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: IntelliJ IDEA, Apache Maven, Integrated Development Environments, Version Control, Unit Testing, Eclipse (Software), Development Environment, Software Development Tools, Debugging, Git (Version Control System), Java, Application Development, Node.JS
Intermediate · Course · 1 - 3 Months

University of Geneva
Skills you'll gain: Ethical Standards And Conduct, Social Impact, World History, Cultural Diversity, Social Justice, Art History, European History, Political Sciences
Beginner · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Database Application, Python Programming, Unit Testing, Computer Programming, Restful API, Cross Platform Development, Package and Software Management, Scripting, Data Science, Computer Programming Tools, Program Development, Software Development, Data Processing, Debugging, Programming Principles, User Interface (UI) Design, Regression Analysis, Machine Learning
Intermediate · Specialization · 1 - 3 Months