First aid courses can help you learn how to recognize common emergencies, understand basic response principles, and communicate effectively with trained professionals. You can build skills in identifying signs of illness or injury, assessing situations safely, and applying general preparedness concepts. Many courses introduce frameworks, scenario-based learning, and tools that support building confidence in responding to unexpected events.

Skills you'll gain: Web Services, Restful API, Apache Maven, Spring Boot, Spring Framework, Gradle, Simple Object Access Protocol (SOAP), Java Platform Enterprise Edition (J2EE), Application Programming Interface (API), Java, Postman API Platform, Software Development Tools, API Design, Application Frameworks, Secure Coding, Object-Relational Mapping, JSON, JUnit, Extensible Markup Language (XML)
Intermediate · Course · 3 - 6 Months

Duke University
Skills you'll gain: Bash (Scripting Language), Shell Script, Scripting, Unix Shell, Linux Commands, Command-Line Interface, Unix Commands, Business Logic, DevOps
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Rmarkdown, Plot (Graphics), Ggplot2, Statistical Visualization, Box Plots, Scatter Plots, Data Visualization, Histogram, Descriptive Statistics, Data Visualization Software, Graphing, R Programming, Data Science
Beginner · Course · 1 - 3 Months

Skills you'll gain: Google Gemini, Professional Networking
Beginner · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Injury Prevention, Fire And Life Safety, Electrical Safety, Accident Prevention, Safety Training, Safety Standards, Health And Safety Standards, Working With Children, Risk Analysis
Mixed · Course · 3 - 6 Months

Indian Institute for Human Settlements
Skills you'll gain: Social Justice, Child Development, Community Development, Working With Children, Education and Training, Higher Education, Pedagogy, Sustainable Development, Cultural Diversity, Teaching, Social Studies, Curriculum Development, Policy Analysis, Diversity Equity and Inclusion Initiatives, Critical Thinking
Intermediate · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Investment Management, Business Risk Management, Financial Market, Financial Modeling, Return On Investment
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Mathematical Modeling, Statistical Modeling, Machine Learning Algorithms, Artificial Intelligence, Generative AI
Build toward a degree
Intermediate · Course · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: No-Code Development, Application Development, User Experience, User Interface (UI), Data Modeling, Sprint Retrospectives, Platform As A Service (PaaS), Product Lifecycle Management, Service Recovery, Digital Transformation, Application Design, Drive Engagement, Technology Solutions, User Feedback, Application Deployment, Customer Engagement, Cloud Platforms, Technical Product Management, Automation, Product Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Legal Technology, Legal Writing, Design Thinking, Design, User Experience Design, Human Centered Design, Graphic and Visual Design, Driving engagement, Qualitative Research, Project Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Javascript, Web Design, Event-Driven Programming, Web Design and Development, Development Environment, Web Development, User Interface and User Experience (UI/UX) Design, Web Applications, Software Development Tools, Interactive Design, Animations, Typography, Color Theory, Web Analytics and SEO, Debugging, Data Validation
Beginner · Specialization · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Spatial Analysis, Spatial Data Analysis, GIS Software, Geographic Information Systems, Geospatial Mapping, Geostatistics, Interactive Data Visualization, Data Integration, Data Mapping, Augmented Reality, Sampling (Statistics)
Beginner · Course · 1 - 3 Months