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.

Peking University
Skills you'll gain: Verbal Communication Skills, Presentations, Public Speaking, Interviewing Skills, English Language, Communication, Vocabulary, Non-Verbal Communication, Cultural Diversity, Intercultural Competence, Business Communication, Grammar, Adaptability
Mixed · Course · 1 - 3 Months

Skills you'll gain: Cucumber (Software), Selenium (Software), Apache Maven, Java, Object Oriented Programming (OOP), Issue Tracking, Gherkin (Scripting Language), Test Automation, Behavior-Driven Development, Test Execution Engine, Test Case, Debugging, Integration Testing, Data Structures
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Technical Communication, AI Enablement, Model Deployment, Generative AI Agents, Data Integration, AI Orchestration, Business Transformation, Cloud Deployment, Initiative and Leadership, Application Deployment, AI Product Strategy, Digital Transformation, Continuous Monitoring, Agentic systems, Compliance Management, Stakeholder Communications, Regulatory Compliance, Dashboard, CI/CD, Data Pipelines
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Pinterest, User Accounts, Social Media, Account Management, User Provisioning, Information Privacy, Online Advertising, System Configuration, Payment Systems
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Terraform, Cloud Computing, Cloud Services, Load Balancing, Infrastructure as Code (IaC), Public Cloud, Virtual Private Networks (VPN), Virtual Machines, Virtual Networking, Managed Services, Network Security, Scalability
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Debugging, Object Oriented Programming (OOP), Java, Teaching, Programming Principles, Computer Programming, Integrated Development Environments, Digital pedagogy
Beginner · Course · 1 - 3 Months

Skills you'll gain: Natural Language Processing, Large Language Modeling, Transfer Learning, Embeddings, Classification Algorithms
Advanced · Course · 1 - 4 Weeks

University of Washington
Skills you'll gain: Business Correspondence, Business Writing, English Language, Language Competency, Writing, Business Communication, Communication
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cross Platform Development, C# (Programming Language), .NET Framework, Microsoft Visual Studio, Performance Tuning, Microsoft Development Tools, Application Security, Debugging
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Financial Services, Banking, Compensation Analysis, Financial Sales, Investment Banking, Financial Management, Commercial Banking, Private Equity, Retail Banking, Project Finance, Financial Modeling, FinTech, Financial Statement Analysis, Actuarial Science, Emerging Technologies, Trend Analysis, Corporate Finance, Digital Transformation, Credit Risk, Risk Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Kotlin, Application Development, Software Documentation, Programming Principles, Data Validation, Computational Logic, Data Mapping
Beginner · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Dataflow, Data Validation, Google Cloud Platform, Data Pipelines, Data Import/Export, Data Infrastructure, Database Development, Big Data, Cloud Storage
Beginner · Project · Less Than 2 Hours