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.

Imperial College London
Skills you'll gain: Logistic Regression, Analytical Skills, Correlation Analysis, Regression Analysis, Sampling (Statistics), Statistical Hypothesis Testing, Data Literacy, Data Analysis, R Programming, Descriptive Statistics, Statistical Modeling, Biostatistics, Model Evaluation, Exploratory Data Analysis, Statistical Analysis, R (Software), Statistics, Statistical Methods, Data Wrangling, Public Health
Beginner · Specialization · 3 - 6 Months

Council on Foreign Relations
Skills you'll gain: International Relations, Diplomacy, World History, Political Sciences, International Finance, Public Policies, Policy Development, Policy Analysis, Public Health, Economic Development, Governance, Social Sciences, Immigration Law, Culture, Socioeconomics, Policty Analysis, Research, and Development, Economics, Negotiation, Decision Making, Strategic Thinking
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Keyword Research, Research, Search Engine Optimization, Search Engine Marketing, User Research, Content Strategy, Web Analytics and SEO, AI Product Strategy, Content Creation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Test Automation, Continuous Integration, CI/CD, AI Orchestration, Software Quality Assurance, Maintainability, Quality Assurance, Automation, Verification And Validation, User Interface (UI), Natural Language Processing, Scalability
Beginner · Course · 1 - 4 Weeks

Emory University
Skills you'll gain: Pharmacology, Substance Abuse, Mental and Behavioral Health, Social Studies, Neurology, Behavioral Health, Vulnerability, Health Policy, Public Health, Case Studies
Beginner · Course · 1 - 3 Months

University of Cambridge
Skills you'll gain: AI Security
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Programming Principles, Algorithms, C (Programming Language), Computer Programming, Software Engineering, Problem Solving, Solution Design
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Journalism, Research, Interviewing Skills, Vocabulary, Media and Communications, Grammar, Electronic Media, Digital Publishing, English Language, Storytelling, Editing, Trend Analysis, Ethical Standards And Conduct
Mixed · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Generative AI Agents, Agentic systems, Game Design, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Video Game Development, Animation and Game Design, Generative AI, Game Theory, Design, Design and Product
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apple iOS, iOS Development, Apple Xcode, Application Deployment, Swift Programming, User Interface (UI), Artificial Intelligence and Machine Learning (AI/ML), Knowledge of Apple Software, Image Analysis, Real Time Data, Mobile Development, Model Deployment, User Interface and User Experience (UI/UX) Design, Computer Vision, Natural Language Processing, Classification Algorithms
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Model Deployment, MLOps (Machine Learning Operations), Data Preprocessing, Exploratory Data Analysis, Logistic Regression, Statistical Machine Learning, Model Evaluation, Supervised Learning, Decision Tree Learning, Probability & Statistics, Statistics, Machine Learning Software, Classification And Regression Tree (CART), Workflow Management, Predictive Modeling, Random Forest Algorithm, Feature Engineering, SAS (Software), Machine Learning, Applied Machine Learning
Advanced · Professional Certificate · 3 - 6 Months

Coursera
Skills you'll gain: Project Schedules, Workflow Management, Sprint Planning, Agile Project Management, Scrum (Software Development), Project Management, Project Planning, Strategic Communication, Project Documentation, Communication Strategies, Agile Methodology, Stakeholder Communications, Process Improvement, Team Management, Risk Management, Change Management, Performance Management, Resource Management, Cross-Functional Collaboration, Data-Driven Decision-Making
Beginner · Specialization · 3 - 6 Months