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.

University of Colorado Boulder
Skills you'll gain: Semiconductors, Power Electronics, Electronic Components, Electrical Engineering, Electric Power Systems, Thermal Management, Simulation and Simulation Software
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Histogram, Data Visualization, Data Literacy, Data Presentation, Descriptive Statistics, Data Storytelling, Statistics, Data Analysis, Statistical Visualization, Sampling (Statistics), Data Validation
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, HTML and CSS, Web Design and Development, Front-End Web Development, Web Design, Computer Programming
Intermediate · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Construction Engineering, Petroleum Industry, Building Codes, Civil Engineering, Oil and Gas, Construction Inspection, Construction, Engineering Plans And Specifications, Energy and Utilities, Electrical Systems, Mechanical Engineering, Safety Standards, Mechanical Design, Materials science, Engineering Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Bootstrap (Front-End Framework), Browser Compatibility, Responsive Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, UI Components, React.js, Web Applications, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Yale University
Skills you'll gain: Environmental Issue, Sustainable Development, Environment and Resource Management, Cultural Sensitivity, Social Justice, Cultural Diversity, Ethical Standards And Conduct
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Climate Change Mitigation, Climate Change Adaptation, Environment, Sustainable Development, Physical Science, Environmental Science, Social Impact, Environmental Policy, Mathematical Modeling, Trend Analysis, Data Collection
Beginner · Course · 1 - 4 Weeks

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

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Distributed Denial-Of-Service (DDoS) Attacks, Application Security, Security Testing, Authorization (Computing), Authentications, Data Validation, Encryption, Security Controls, Data Security, Vulnerability Scanning, Role-Based Access Control (RBAC), Verification And Validation, Intrusion Detection and Prevention, Database Application, Security Awareness, Cybersecurity, Web Servers, Web Development Tools
Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Robotics, Artificial Intelligence, Graph Theory, Algorithms, Control Systems, Computer Vision, Computer Science, Python Programming, Data Structures
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Model Evaluation, Responsible AI, Exploratory Data Analysis, Predictive Modeling, Data Visualization, Machine Learning, Policy Analysis, Statistical Methods, Data Science, Data Ethics, Development Environment, Software Engineering
Beginner · Guided Project · Less Than 2 Hours

University of Illinois Urbana-Champaign
Skills you'll gain: Deep Learning, Applied Machine Learning, Generative Adversarial Networks (GANs), Healthcare Project Management, Machine Learning Methods, Image Analysis, Graph Theory, Artificial Neural Networks, Convolutional Neural Networks, Health Informatics, Autoencoders, Recurrent Neural Networks (RNNs), Predictive Modeling, Unsupervised Learning, Python Programming
Advanced · Course · 1 - 4 Weeks