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 Cape Town
Skills you'll gain: Biostatistics, Statistical Methods, Statistical Hypothesis Testing, Data Literacy, Probability & Statistics, Diagnostic Tests, Clinical Research, Medical Science and Research, Clinical Trials, Statistical Analysis, Science and Research, Quantitative Research, Statistics, Scientific Methods, Descriptive Statistics, Statistical Inference, Probability Distribution, Probability
★ 4.8 (3.7K) · Beginner · Course · 1 - 3 Months

Rice University
Skills you'll gain: Cardiology, Anatomy, Immunology, Hematology, Hemodynamics, Capillary, Clinical Practices, Pathology, Electocardiography, Physiology, Electrophysiology, Cell Biology
★ 4.8 (27) · Intermediate · Course · 1 - 3 Months

CentraleSupélec
Skills you'll gain: Android Studio, Android Development, Android (Operating System), Storyboarding, Application Design, Mobile Development, Application Development, Java, User Interface (UI) Design, UI Components, Java Programming, Software Documentation, Event-Driven Programming, Interactive Design, Development Environment, Software Installation, User Centered Design
★ 4.2 (2K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Bootstrap (Front-End Framework), HTML and CSS, UI Components, User Interface (UI), Front-End Web Development, Responsive Web Design, JavaScript Frameworks, Web Design, Web Development, Web Applications, Hypertext Markup Language (HTML), Full-Stack Web Development, Cascading Style Sheets (CSS), General Networking, Back-End Web Development, React.js, Web Servers
★ 4.7 (3.7K) · Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Graph Theory, Logical Reasoning, Cryptographic Protocols, Combinatorics, Computational Logic, Deductive Reasoning, Cryptography, Probability, Key Management, Computational Thinking, Encryption, Probability & Statistics, Programming Principles, Network Analysis, Theoretical Computer Science, Bayesian Statistics, Python Programming, Cybersecurity, Algorithms, Arithmetic
★ 4.5 (3.7K) · Beginner · Specialization · 3 - 6 Months
University of Pennsylvania
Skills you'll gain: Ancient History, Art History, Liberal Arts, World History, Aesthetics, Performing Arts, European History, Ethical Standards And Conduct, Anthropology, Sociology, Psychology
★ 4.8 (2.6K) · Mixed · Course · 1 - 3 Months

Rice University
Skills you'll gain: Cost Estimation, Project Scoping, Communication Planning, Cost Management, Engineering Management, Scope Management, Project Estimation, Project Schedules, Earned Value Management, Team Management, Quality Assurance, Stakeholder Management, Team Performance Management, Risk Management, Organizational Structure, Project Documentation, Stakeholder Engagement, Project Management, Procurement, Planning
★ 4.7 (4.8K) · Beginner · Specialization · 3 - 6 Months

Northwestern University
Skills you'll gain: Social Media, Social Media Marketing, Target Audience, Social Media Strategy, Digital Transformation, Professional Networking, Social Media Analytics, Marketing Strategies, Social Network Analysis, Community Development
★ 4.6 (4.2K) · Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Clinical Trials, Clinical Research Ethics, Clinical Research, Healthcare Ethics, Scientific Methods, Statistical Reporting, Ethical Standards And Conduct, Drug Development, Statistical Methods, Statistical Analysis
★ 4.7 (4.4K) · Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Excel Macros, Programming Principles, Visual Basic (Programming Language), Program Development, Object Oriented Programming (OOP), Computer Programming, Debugging, Data Cleansing, Problem Solving, Code Reusability, Spreadsheet Software, Data Management, Automation
★ 4.8 (4.3K) · Beginner · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Research, Energy and Utilities, Vocabulary, Learning Strategies, Climate Change Mitigation, Literacy, English Language, Environment, Sustainable Technologies, Environmental Issue, Language Learning, Scientific Methods, Environmental Science, Grammar
★ 4.8 (2.9K) · Beginner · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Tensorflow, Recurrent Neural Networks (RNNs), Time Series Analysis and Forecasting, Applied Machine Learning, Convolutional Neural Networks, Deep Learning, Predictive Modeling, Data Preprocessing, Artificial Neural Networks, Machine Learning Methods, Forecasting, Machine Learning
★ 4.7 (5.2K) · Intermediate · Course · 1 - 4 Weeks