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.

Arizona State University
Skills you'll gain: Vocabulary
Mixed · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: People Analytics, Human Capital, Human Resource Strategy, Human Resources, Talent Management, Organizational Effectiveness, Workforce Management, Analytics, Performance Measurement, Employee Performance Management, Data-Driven Decision-Making, Performance Analysis, Network Analysis, Employee Retention, Performance Management, Collaboration, Data Analysis, Predictive Analytics
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, Supervised Learning, Large Language Modeling, Generative AI, Reinforcement Learning
Beginner · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Content Performance Analysis, Brand Strategy, ChatGPT, Storytelling, Brand Marketing, Corporate Communications, Performance Measurement, Key Performance Indicators (KPIs), Drive Engagement, Brand Awareness, Branding, Value Propositions, Prompt Engineering, Responsible AI, Data Ethics, Copywriting, Customer Engagement
Mixed · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: People Management, Law, Regulation, and Compliance, Legal Risk, Workplace inclusivity, Business Ethics
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Atlassian Bamboo, CI/CD, Continuous Integration, Continuous Deployment, Application Deployment, Continuous Delivery, DevOps, Bitbucket, Test Automation, Software Configuration Management, Jira (Software), Git (Version Control System), Configuration Management, Software Installation, Data Pipelines, Development Testing
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Prompt Engineering, User Story, New Product Development, Model Based Systems Engineering, Model Evaluation, Failure Analysis, Sustainable Business, Data Mining, Field-Programmable Gate Array (FPGA), Delegation Skills, Real-Time Operating Systems, Object Oriented Design, Sampling (Statistics), Proposal Writing, Supplier Management, Accountability, Data Ethics, Sustainability Reporting, Database Design, Sustainable Design
Earn a degree
Degree · 1 - 4 Years

JetBrains
Skills you'll gain: Kotlin, Object Oriented Programming (OOP), Java, Java Programming, Android Development, Functional Design, Interoperability, Computer Programming, Unit Testing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Professionalism, Payment Processing and Collection, Care Management, Patient Communication, Medical Coding, Patient-centered Care, Healthcare Ethics, Medicare, Professional Development, Data Integrity, Interpersonal Communications, Empathy, Teamwork, Ethical Standards And Conduct, Conflict Management, Interoperability, Cultural Responsiveness, Emotional Intelligence, Communication, Time Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Payment Systems, Debugging
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Android Studio, Android Jetpack, Kotlin, Android Development, Android (Operating System), Responsive Web Design, Mobile Development, UI Components, Unit Testing, Gradle, User Interface (UI) Design, Application Development, User Interface (UI), Integrated Development Environments, Object Oriented Programming (OOP), Development Environment, Programming Principles, Test Driven Development (TDD), Wireframing, Prototyping
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Google Analytics, Web Analytics, Web Analytics and SEO, Marketing Analytics, Content Performance Analysis, Data-Driven Decision-Making, Analytics, Performance Reporting, Driving engagement, Key Performance Indicators (KPIs), Performance Metric, Customer Insights, AI Personalization, Performance Analysis
Beginner · Course · 1 - 4 Weeks