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.

Northeastern University
Skills you'll gain: Probability & Statistics, Probability Distribution, Probability, Statistical Methods, Exploratory Data Analysis, Statistical Analysis, Bayesian Statistics, Descriptive Statistics, Data Analysis, Statistical Visualization, Correlation Analysis, Reliability, Risk Modeling
Mixed · Course · 1 - 3 Months

Skills you'll gain: PHP (Scripting Language), MySQL, WordPress, Web Applications, Application Programming Interface (API), Web Development, Content Management Systems, Restful API, DevOps, Linux, Full-Stack Web Development, Data Store, Command-Line Interface, Back-End Web Development, Server Side, Secure Coding, Scripting, Database Management, SQL, Javascript
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Probability & Statistics, Data Ethics, Statistical Analysis, Quantitative Research, Statistical Inference, Statistics, Sample Size Determination, Sampling (Statistics)
Build toward a degree
Intermediate · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Employee Performance Management, People Development, Performance Appraisal, Performance Review, Employee Engagement, Performance Management, Communication, Goal Setting, Goal-Oriented, Performance Metric, Performance Measurement, Performance Analysis, Employee Onboarding, Performance Reporting, Active Listening, Motivational Interviewing, Job Analysis, Personal Development, Interviewing Skills, Job Evaluation
Mixed · Course · 1 - 3 Months

Skills you'll gain: AI Orchestration, AI Workflows, OpenAI API, ChatGPT, Test Script Development, Agentic systems, Context Management, Secure Coding, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: IT Service Management, Information Technology Infrastructure Library, Change Control, IT Management, Service Management, Security Management, Technical Services, Enterprise Architecture, Managed Services, Risk Management Framework, IT Security Architecture, Capacity Management, Release Management, Incident Management, Service Level
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Search Engine Optimization, E-Commerce, Order Management, Product Improvement, Real Time Data, User Feedback, Payment Processing and Collection, Promotional Strategies
Advanced · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Software Architecture, Amazon Web Services, Amazon DynamoDB, Python Programming, Service Oriented Architecture, Cloud Computing Architecture, Microservices, Serverless Computing, Cloud Applications, Application Programming Interface (API), Databases, Scripting, Programming Principles, Automation, Relational Databases, Application Development, Development Environment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Azure Active Directory, Single Sign-On (SSO), Identity and Access Management, Authentications, Authorization (Computing), Active Directory, Multi-Factor Authentication, Microsoft Azure, Role-Based Access Control (RBAC), User Accounts, Security Controls, Enterprise Security, Cloud Services
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: NumPy, Data Structures, Data Analysis, Object Oriented Programming (OOP), Exploratory Data Analysis, Image Analysis, Data Science, Data Transformation, Data Manipulation, Big Data, Performance Tuning, Python Programming, Data Import/Export
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Amazon S3, Amazon Elastic Compute Cloud, Virtual Networking, Multi-Factor Authentication, Virtual Private Networks (VPN), Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Google Cloud Platform, YAML, Cloud Deployment, Data Persistence, Containerization, Application Deployment, Configuration Management, MongoDB, Infrastructure Security, Network Security, Application Programming Interface (API), Scalability
Intermediate · Course · 1 - 3 Months