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 Pennsylvania
Skills you'll gain: File I/O, Data Structures, Programming Principles, Python Programming, Computer Programming, Computational Thinking, Scripting, Software Development Tools, Scripting Languages, Integrated Development Environments, Jupyter
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Sampling (Statistics), Data Analysis, Descriptive Statistics, Box Plots, Statistics, Statistical Analysis, Probability & Statistics, Data Visualization Software, Exploratory Data Analysis, Histogram, R Programming, Scatter Plots, Data-Driven Decision-Making, Microsoft Excel
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Model Evaluation, Decision Tree Learning, Data Preprocessing, Classification Algorithms, Applied Machine Learning, Java, Predictive Modeling, Machine Learning Software, Supervised Learning, Technical Communication, Feature Engineering, Tree Maps, MLOps (Machine Learning Operations), Machine Learning Algorithms, Machine Learning, Algorithms
Advanced · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Combinatorics, Mathematical Theory & Analysis, Advanced Mathematics, Graph Theory, Theoretical Computer Science, Calculus, Probability, Computational Thinking
Intermediate · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Marketing Psychology, Marketing Planning, Marketing Strategies, Blogs, Marketing, Web Analytics and SEO, Marketing Effectiveness, Podcasting, Growth Strategies, Social Media Content, Search Engine Optimization, Marketing Channel, Content Creation, Advertising Campaigns, Product Promotion, Digital Advertising, Marketing Automation, Case Studies, Professional Networking, Digital Marketing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Splunk, Performance Tuning, Scalability, Data Pipelines, Real Time Data, Distributed Computing, System Monitoring, Debugging, Data Processing, Query Languages, Configuration Management
Beginner · Course · 1 - 4 Weeks
Universidad Austral
Skills you'll gain: Angular, Server Side, Node.JS, Responsive Web Design, LESS, Bootstrap (Front-End Framework), Mobile Development, Back-End Web Development, Version Control, Cross Platform Development, Restful API, HTML and CSS, Web Design and Development, React Redux, JavaScript Frameworks, Continuous Integration, TypeScript, iOS Development, Apple iOS, MongoDB
Beginner · Specialization · 3 - 6 Months
Rice University
Skills you'll gain: Event-Driven Programming, Application Development, Interactive Design, Animations, Programming Principles, Computer Graphics, Python Programming, Game Design, Computer Programming
Mixed · Course · 1 - 3 Months

SkillUp
Skills you'll gain: Forecasting, Classification Algorithms, Dimensionality Reduction
Intermediate · Specialization · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Google Analytics, Web Analytics, Content Performance Analysis, Performance Metric, Responsive Web Design
Mixed · Course · 1 - 3 Months

Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Google Analytics, Data Storytelling, Content Performance Analysis, Web Analytics and SEO, Data Validation, Stakeholder Engagement, Statistical Modeling, Search Engine Optimization, Marketing Analytics, Web Analytics, Marketing Automation, Data Visualization, Customer Insights, Data-Driven Decision-Making, Campaign Management, Key Performance Indicators (KPIs), Predictive Analytics, Performance Measurement, Return On Investment, Artificial Intelligence
Intermediate · Specialization · 3 - 6 Months